Sound waves travel through air pressure changes, and the sounds you hear differ depending on how frequent and how big those waves are. Microphones turn sound waves into electric signals, which is how you can record sound onto CDs and other devices. When you play the recorded sound, it's turned back into an electrical current. Speakers work like reverse microphones. They turn the electrical currents into physical vibrations that make the sound waves for your ears to pick up. When everything is tuned properly, the speaker is able to reproduce the vibrations that the original microphone recorded and changed into electrical signals.

The voice coil component of a speaker is actually just an electromagnet. Electromagnets are coils of wire, and they're normally wrapped around some kind of magnetic metal, like iron. By running an electrical current through the wire, you produce a magnetic field surrounding the coil; this field magnetizes the metal in the middle creating north and south polar orientations. The difference between an electromagnet and a permanent magnet is that you can switch the polar orientations on an electromagnet by reversing the current's flow.

Stereos use this property of electromagnets to repeatedly reverse the electrical flow. The amplifier switches the signal over and over, making the red output wire on the stereo switch between positive and negative charges. The voice coil's electromagnet is placed within a permanent magnetic field. The two magnets interact, and every time the electromagnet's polarity changes, the interaction between the magnets changes. When the magnets are repeatedly repelled and attracted, they move the coil back and forth quickly, kind of like the piston in an engine. The moving coil presses and pulls on the speaker cone and vibrates the air in front of the speaker. This creates sound waves via a driver that vibrates the diaphragm.

Any critique of David Gallop's seven-year tenure as Football Federation Australia (FFA) chief executive should contain the type of fault-deflecting caveat that might be included in an assessment of the Chernobyl first responders.

The cracks in the structure had been exposed, the emergency protocols were ignored, the roof of the core reactor had blown off and Australian football had gone into full meltdown many times before Gallop put on the hazmat suit.

Throughout its local history the game has been so radioactive it could play night fixtures without lights.

But upon Gallop's arrival, the latest toxic fumes that were to engulf the FFA — and the A-League particularly — were disguised by a period of relative growth and prosperity that might be called the Wanderers Era.

This dizzying time peaked in 2013 when the belated inclusion of the Western Sydney Wanderers and their boisterous fans unleashed the full possibilities of a competition that had shown encouraging signs of growth and seemed to provide a template for what the A-League would become.

Coincidentally, I attended a Wanderers match at the old Parramatta Stadium with Gallop early that year. The grey-haired bespectacled chief executive was greeted like a rap star by Wanderers fans — and even the coaches and players — almost pitifully grateful such a well-known figure had accepted Frank Lowy's seven-figure invitation to run the sport.

Gallop's final years as NRL chief executive included being manhandled by disgruntled Manly and Melbourne supporters and enduring the vitriol of Sea Eagles full-back Brett Stewart during a grand final presentation.

Being asked to pose for photos with fans and glad-handing Alessandro Del Piero was a pleasant change indeed.

Alas, Married At First Sight has produced longer honeymoons than the one Gallop enjoyed with football fans. Even that night the writing was on the now-demolished Parramatta Stadium walls.

In the flimsy corporate box, Lowy put an arm around his prized new chief executive. But as Lowy's influence remained undiluted this would soon seem more the act of a seasoned ventriloquist than of an empowering chairman — even more so when Steven Lowy took his father's place in the family football business.

Meanwhile, the same Wanderers fans who hailed Gallop would later damn him for his allegedly heavy-handed crackdown on their "active" support.

This was just one instance where Gallop's FFA seemed clueless about how to balance the legitimate expressions of passion that had given the A-League its greatest point of difference with the need to control the antisocial activities of a fringe group of supporters.

But rather than Gallop's lack of football intuition, it is the game's failure to cash-in on the commercial opportunities created by the vibrant early seasons of the A-League that has been most damning during his reign.

Again, it must be remembered Australian football had already reached the "shooting radioactive dogs in the exclusion zone" stage on the Chernobyl timeline when Gallop arrived.

Just one example: the pay-TV deal that at the same time funded the A-League and restricted its visibility was well established and the small window in which free-to-air TV might have had a meaningful interest in the rights was never opened.

Gallop guilty of inactivity at FFA

Gallop also inherited the job in the immediate aftermath of the failed 2022 World Cup bid, the wretched enterprise that drained the game of funds, burnt bridges with the Federal Government and distracted the FFA from bolstering the A-League.

But for all that, it is difficult to consider Gallop anything other than the wrong man at the wrong time given the gradual descent of the domestic competition, particularly over the past few seasons, and also the enduring failure to translate a massive participation base into broader, revenue-generating support.

When Gallop stood down as NRL chief executive in mid-2012 the chairman of the new ARL Commission, John Grant, described him as "reactive", a description that understandably stung.

In a game beset by behavioural problems, dominated by the self-serving club warlords and unduly influenced by the agenda-pushing crisis merchants of the Sydney media, what was Gallop to do but react to one catastrophe after another?

Gallop's disillusionment at his replacement by the upmarket English banker David "Call Me Dave" Smith endured even after he joined the FFA on a larger salary. After playing fireman during the worst times of the club-controlled NRL, Gallop felt he was never given the clean air to innovate and change that the ARL Commission might have provided.

Yet when handed a second chance to shape a major Australian football code, "inactive" seems a more suitable description of Gallop's tenure. Although it is difficult to know if this apparent torpor was because, as critics insisted, Gallop did not have a "feeling for the game", or whether he was hog-tied by Lowy's dominance as well as the game's intractable internal politics and unwieldy structure.

In the media release announcing Gallop's departure he cited the introduction of the FFA Cup, the Asian Cup victory, consistent World Cup participation, a "record six years media rights deal with Fox Sports" and increases in participation among his achievements.

Yet this seems more like a list of things that happened during Gallop's seven years rather than a list of accomplishments he planned, inspired or leveraged to create lasting change.

The lingering memory will be of the messy departure of Matildas coach Alen Stajcic and the looming takeover of the A-League by the more ambitious club bosses.

So after seven years you can't thank Gallop for cleaning up Australian football's radioactive waste, but nor can you blame him for the three-eyed fish in the cooling pond.

With two smart phone giants of Huawei and Samsung recently releasing two foldable smartphone types, there seems to blow the wind that we may enter a next generation of foldable smartphones. But will this come true? Beforehand, let’s have a close check at those two smartphones.

Samsung Galaxy Fold

Samsung Galaxy Fold smartphone was launched in February 2019. The phone comes with a 7.30-inch touchscreen primary display with a resolution of 1536×2152 pixels, a 4.60-inch touchscreen as its second display, with a resolution of 840×1960 pixels. Samsung Galaxy Fold is powered by an octa-core processor with 12GB of RAM. There are three camera apertures on its rear. It sports a 10-megapixel camera on the front for selfies, with an f/F2.2 aperture. It was launched in Space Silver, Cosmos Black, and Martian Green and Astro Blue colors.

However, its rival, Huawei, launched its Mate X in February 2019. The phone comes with a 6.60-inch touchscreen primary display with a resolution of 1148×2480 pixels. Featuring a 6.38-inch touchscreen as its second display, with a resolution of 892×2480 pixels, the Huawei Mate X also has an 8.00-inch touchscreen as its third display, with a resolution of 2200×2480 pixels. As far as the cameras are concerned, the Huawei Mate X on the rear packs a 40-megapixel primary camera; a second 16-megapixel camera and a third 8-megapixel camera. It sports a camera on the front for selfies. The Huawei Mate X was launched in Interstellar Blue color.

But, not long ago, Sumsang has recalled all its review units because of the drawbacks they found on the testing samples, including screen crease on the folded hinge and the protective layer on the screen. And users also have found the same problems on Huawei Mate X, display crease and user experience problems.

Now let’s come back to the topic, is the folded smartphone the future trend? In my opinion, the answer may be NO.

At present, the smartphone has come to an awkward dilemma of bottleneck development. No suppliers including the so called smartphone tycoons can develop a refreshing technical design for users. All the so called next generation is just a repetition of old technology or some minor changes for the placement of the camera, the fingerprint identification, or the number of camera they piled up on the phone. 

For this kind of folded smartphone, it is another version of finding existence in the market. There is no obvious technical enhancement except for a larger visual angle on a larger screen, a new using experience of folding your phones. However, customers must pay a much higher price for those so called new experience and also for its following faults caused by folding design. The loose outweighs the gain. We are waiting for a real breakthrough in the smartphone industry to startle us.

Huawei launched its new flagship line earlier this year, P20 and P20 Pro, as usual most customers care more about the design, camera performance, chip/system and other key features, especially the triple-lens P20 Pro draws astonishing attention. What about the battery part? 

We know that Huawei sports a trimmed 3400mAh non-removable battery cell at P20, for P20 Pro it’s a whopping 4000mAh capacity included. Literally 3400mAh should be enough for intermediate daily usage – like news searching, work, play-not heavily playing, you can comfortably use the P20 all day and night without worrying that it’ll run out on you. 

To make a comparison, we decide to play videos and games to verify whether the battery life is as strong as the official says. Playing a full screen HD video on max brightness for 90 minutes, the P20 had lost 30% of its charge. The result of video watching is quite acceptable, especially for the World Cup season, even though the performance is not as great as Samsung Galaxy S9 and iPhone X. While game-playing is a big energy-draining monster, it only lasts about 3 hours to run a heavy game. If video watching and game playing is part of your daily life you’d better prepare a good power bank to keep it alive, of course most smartphones would not survive for a very long time , so don’t blame P20 for this point, it’s just in the average zone.

How to prolong the battery life of Huawei P20?

1.Try to reduce the screen resolution to 720p. In a 5.8 inches screen, there’s not a highlighted difference with 720p and 1080p resolution, lower the index would extend the battery life distinctly, especially when watching videos.

2.Automatic brightness should also save you a few percent. You can adjust the brightness on you own, but I still recommend you to put it on automatic since you don’t need to think much about it and change it  often.

3.Use Power-Saving Mode and Ultra Power-Saving Mode. Both make a real difference to power consumption – if you can live with the sacrifices.

4.Keep it cool. The phone is always getting hot when use it heavily, and high temperature is a serious killer of battery life. Take the case off and turn off the needless apps on the background before it becomes too hot.

All in all, Huawei P20 is not the best battery-performing phone, but for daily routine it’s absolutely competent. If you are looking for a phone with snappy design and high-end performance for a fair price, Huawei P20 is a good option for you. 

It once was the center of modern office technology, spitting out reams of important documents as they poured in from around the world, letting business people exchange printed information as fast as they could across the telephone lines.

The fax machine is still an important piece of office technology, despite the advances that e-mail and the Internet have wrought. Its strange voice -- a series of beeps, squeaks and hisses -- that remains familiar to all who work in the business world. Many people even have fax machines in their homes.

The fax-machine concept dates back more than a hundred years. The technology has been in place almost as long and was heavily influenced by another technology of the day -- the telegraph, the first technology that allowed humans to send information instantly to distant points via electrical wires.

What is the history of the fax machine? And, where did the term "fax" come from anyway? Check out the next page to find out.

Alexander Bain & Early Fax Developments

Early cultures used drums and smoke signals to send messages. At the battle of Thermopylae, Greeks used mirrors to reflect the suns' rays and send signals. The Pony Express, while hardly instantaneous, was an early attempt to quickly send detailed information over great distances.

But the telegraph really revolutionized communications, bringing the lightning-quick characteristics of electricity into play.

Scientists made great advances in the study of electricity in the 18th century, opening the way for the telegraph. In 1833, Germans Carl Friedrich Gauss and Wilhelm Weber built a working telegraph line that stretched for nearly a mile through the city of Gottingen. It wasn't long before William Cooke and Charles Wheatstone put the first practical telegraph into use in 1837. It used five needles that pointed to alphabet letters on the receiving end. Being an operator, therefore, required no great skill; only that the receiver write down the letters as they arrived.

This new timeliness would lead Scotsman Alexander Bain to wonder about sending not just signals but also images over the wires.

Bain, a clockmaker, used his expertise to design and patent the basic concepts involved in the modern fax machine. His idea, which became known as the "chemical telegraph," used the electric signals generated by a telegraph operator. The signals would pass through a type of paper that was soaked in a chemical. The signal caused the chemical to evaporate, leaving a long or short mark of Morse code. The marks allowed for much faster transmission and led him to create punched-hole tapes that allowed automated transmissions and reception.

An innovative technician, Bain invented the fax machine when he patented the idea on May 27, 1843, decades before the telephone was patented and when the telegraph was only about 10 years old.

The Science Behind Fax Machines

The process Bain used relied on electrochemistry and mechanics, which he mastered during his days as an instrument and clock maker. Bain saw that telegraphs of the day were slowed by simple mechanics. He also noted that invention relied on electrical impulse, which he thought could be harnessed in a way that would create visual messages, speeding the process.

The chemical telegraph Bain invented, which would later be modified to become the first fax machine, at first simply sent "long" and "short" lines, which a telegraph operator could interpret quickly. The process was a success and the electrochemical process it used was a major leap forward for future fax technology.

Bain later applied the chemical telegraph idea to sending images. To send rudimentary pictures, Bain made a copy of the picture in copper and then discarded everything except the actual lines of the picture he wanted to send.

His process next used a pair of pendulums, synchronized at a distance by an electromagnet. He fitted the pendulum with a contact beneath it and swung it over the copper picture. Each time the contact touched the copper image, it would send an electrical impulse racing over the wire to the identical synchronized pendulum swinging over some chemically treated paper. The chemical in the paper darkened when touched by the energized pendulum. Both the sending picture and the receiving paper moved beneath each pendulum by 1 millimeter following each pendulum swing, resulting in a "scan" of the original and a copy printed on the other end, which eventually resulted in the copper image from the sending pendulum being duplicated on the paper.

Bain used a solution of nitrate ammonia and purssiate of potash to treat the paper that received the picture. When touched by the electrical impulse, the solution decomposed leaving a bluish stain. This created the first fax pages.

Innovations in the History of the Fax Machine

Following Bain's achievements, a group of inventors put the fax machine through many revisions before reaching its modern form.

Giovanni Caselli created the pantelegraph, which became the first commercial fax link between Paris and Lyon, France, around 1865. Building on Bain's ideas, Caselli's tall, cast-iron machine sent thousands of faxes each year.

Caselli's customers would write their message on a thin sheet of tin using a non-conductive ink. The operator would then place the tin on a curved metal plate and scan it with a needle and send it to another pendulum-operated machine in the other city. Because of the non-conductive ink used to write the message, the receiving end would get an inverse reproduction of the sheet.

In 1903, Arthur Korn achieved the first photoelectric scanning fax machine network that linked Berlin, London and Paris by 1910. His method represented a step beyond Bain's contact scanning.

Using the light-sensitive element selenium, Korn's machine could convert the various tones of a scanned image into different electric currents. His work remained the standard for decades and paved the way for the Associated Press to begin a photo wire service that could send news photographs around the world. Korn would also invent a commercial picture transmitter that used radio waves instead of wires to send pictures across the Atlantic Ocean.

The French engineer Edouard Belin invented a process that also could send photos [source: Tech News]. He would first chemically treat a photo, giving it an uneven contour based on its light and dark shades. A needle scanner picked up these contours and converted them into varying electric currents, which could be sent to another machine. His continuous work made the machines smaller, faster and more reliable. He also found ways to encrypt fax transmissions for security reasons.

In 1947, Alexander Muirhead demonstrated a fax machine incorporating a rotating drum scanner that became very successful.

Modern fax machines incorporate many improvements from previous versions, but the premise remains the same. The sender places an original on an electronic scanning bed where an electric "eye" looks at the paper and records the image there, whether it be a complicated "picture" or simple text. The scanner then digitizes the image, turning it into a series of 1s and 0s that it can transmit over phone lines or the Internet.

On the receiving end, a computer processor re-assembles the image from the digital information and prints it out, either to paper or onto a computer screen.

 Instead of a rotating drum, modern fax machines use a photo sensor to "look" at the paper it's copying and sending. The sensor tells the difference between dark and light areas, which tell a computer processor how to reproduce the image at a distant location by encoding the information. The encoding makes it possible to send it along a phone line or over the Internet.

At the receiving fax machine, the machine reads the encoded information and reassembles the image.

Modern fax machines come in many variations regarding speed, capacity and resolution. Some work as stand-alone and others work in conjunction with computers. Still others are multi-function, working as copy machines and fax machines that send to other traditional fax machines or e-mail images to other computers

Nobody can live without a cell phone these days and it seems like everyone has one within reach 24 hours a day. While a mobile phone can do many things that were unimaginable just 20 years ago, it's still just an instrument like any other. Cell phones come with both advantages and disadvantages to consider.

Positives of Cell Phones

Mobile phones have many uses, both on a personal level and beyond. They can be used to help make your life, career, and business better and easier.

Reduced Call Costs

It cost around $12 to make a three-minute call from Boston to London in 1950. The same call was $3 in 1960. Today, you can do it for free  with Skype Facebook ,Messenger, Whatsapp

Increased Productivity with Mobile Hotspot

Turn on your phone's mobile hotspot 

M-Commerce Business Opportunities

For those with strong business acumen, the total user base of six billion people reveals the massive market of m-commerce (mobile commerce instead of e-commerce). This translates to an unprecedented number of opportunities for those who sell things with m-commerce and anything related to mobile phones. The thousands of iPhone and Android apps are good examples of people (app developers) who are aware of the massive potential of mobile commerce.

Easy Monitoring While Away

Mobile phones are equipped with a GPS system so that the user can be tracker. This feature provides security, especially in monitoring children  and improving crime prevention. There are, however, cell phone location tracking laws that were issued by states to protect user privacy. A cell phone also provides convenient access to real time monitoring when used in tandem with Internet-connected cameras (IP cameras). This makes it easy for parents and business owners to monitor their homes and stores remotely.

Negatives of Cell Phones

Anything that's used in excess can result in negative outcomes. The same is true with using mobile phones. Here are several drawbacks for consideration.

Changes in Reading Habits

As people are getting more accustomed to reading brief texts, they're starting to read fewer actual books. According to research by the Pew Research Center , teachers and parents have confirmed that teenagers have been avoiding reading books, which are many times longer than text messages. Reading habits have changed across the age groups. Publications have been forced to adapt.

Distracted Driving

It's not only concerned parents who are telling their children to stop calling and texting while driving , but also the National Safety Council(NSC)  and the state legislators. According to the NSC, someone is hurt in a car crash every eight seconds and 47 percent of them are due to using cell phones while driving.

This explains why state legislators have approved laws banning the use of cell phones while driving. While select states ban calling while driving, which is allowed with certain safety conditions, almost all states ban texting while driving.

Cancer and Health Risks

According to an article written by Patrick J. Skerrett, the former executive editor of Harvard Health, cell phone use stimulates brain activity, which in itself is neither good nor bad. However, the primary concern is the possibility that excessive cell phone use could cause brain cancer. Cell phone antennas are known to emit radio frequency energy, which is a form of non-ionizing radiation. And since tissues nearest to them can absorb it, health experts at the National Cancer Institute are concerned about how cell phone use is affecting the health of users.

Environmental Impact

The first Apple iPhone was introduced in 2007. In the decade that has followed, the environment impact has been tremendous. The Greenpeace report "From Smart to Senseless: the Global Impact of 10 Years of Smartphones" gives a glimpse into how the production of new and the recycling of old smartphones affect the environment long term.

It takes about 70 kilograms of carbon dioxide to produce one iPhone. And it takes about 1,000 years for a used electronics, which includes mobile phones, to decompose in the environment. And don't forget about the 50 million tons of electronic waste dumped into landfills worldwide every year either.

Weighing the Pros and Cons

In this modern age, not using a mobile phone would be almost impossible. Most activities depend on communication with others and with using certain mobile apps. Simply take the time to be aware of habit changes, as well as growing concerns over health, safety and the impact on the environment. Like all tools, use cell phones responsibly.

On a cold Tuesday night in Perth's northern suburbs, Alistair McMurdo gathers his team.

"If the door closes, don't force your way through," he tells the Northern Redbacks Women's Soccer Club's under 16s side.

"Be comfortable on the ball. Keep possession and start again."

It is half-time in a scratch match and the team is leading one-nil.

But McMurdo is clear on what he wants to see in the second half.

"It's like a team of ghosts out there. There's only one or two who are doing the talking," he explains

Competition expected to be tough

The Redbacks are preparing for the biggest tournament of their short careers when they travel to Gothenburg in Sweden to play in the Gothia Cup later this month.

It is billed as the World Youth Cup and features 1,700 teams, both male and female, from 80 countries across multiple age groups.

"We've had a little bit of insight, and delved into the background of some of the teams that are going to be there," McMurdo said.

They have previous history of this tournament and know what to expect."

The Redbacks are the first girls' side from Western Australia to compete at the tournament since its inception in 1975.

"It's such a privilege to be part of a team, and have the opportunity to go to Sweden," captain Grace Monteiro said.

"I expect, as captain, hard work and dedication from the team."

Chance to be spotted by scouts

The Redbacks will begin their campaign against two Swedish teams and a side from the United States — countries with strong women's football programs.

Despite being used to winning, as seven trophies in the past three years illustrate, they are not expecting too much of themselves.

"They are capable girls' teams that are going to be hard to compete against, but hopefully we produce a win at some stage," Monteiro said.

"I expect the American team to have a great skill level."

McMurdo sees the tournament as an opportunity for his players to experience a different style of soccer, as well as to perform under the eye of professional scouts.

The Redbacks boast Matildas legend and record goal scorer Lisa De Vanna amongst their alumni, and the tournament could be the perfect stage for the next generation to showcase their skills.

"We've got two senior girls going, who are a year older, who may wish to turn professional, and there may be somebody there just to watch them," McMurdo said.

Soccer superstars among previous competitors

The tournament has been running for 44 years and over that time almost a million players from 146 countries have taken part.

Those players include some of the game's biggest stars.

England and Premier League legend Alan Shearer and Swedish superstar Zlatan Ibrahimovic are just two who played at the Gothia Cup.

Zlatan is a great player. So going to a tournament that he has been to potentially means one of our girls could be an international player at some stage," Monteiro said.

"It makes the tournament bigger."

The side's first game is on July 15.

There are so many kinds of digital cameras out there that when you're ready to buy a new one, it's hard to know where to start. Here are some things to look at when choosing a digital camera.

• Number of megapixels An image on a digital camera is made of thousands of tiny dots. A megapixel is a million pixels. The more megapixels your camera has, the better the resolution of your photographs will be. Most people don't need a camera with more than 6 megapixels
• Type of camera There are different types of cameras on the market, from basic point-and-shoot cameras for taking pictures of family and friends to advanced cameras with lots of features for real photography buffs. A basic camera may cost between $70 and $500. An advanced camera will run you anywhere from $350 to $2000
• Features Consider what features you want in a camera. These may include manual exposure settings and focus, zoom lens range, shooting, focus and flash modes, video and even 3-dimensional capability. Look at the lens quality, battery power and type of memory cards the different cameras use. Some "smart cameras" can set the exposure, focus and color balance, and can even detect smiles or warn you when a photo subject blinked in the shot
• Brand Do some research to find out what brands and models consumers recommend. Different brands are known for selling cameras with different characteristics, so keep this in mind if you already know what type of camera you're looking for
• Where to shop Consider shopping online, where you can find both a wide selection and low prices. Most stores only have one or the other. You may want to go into a store and try the cameras out before purchasing it over the Internet, though. Cameras have different idiosyncrasies that you wouldn't necessarily notice by just looking at a picture on a Web site
• Price Of course you don't want to pay a small fortune for your camera, but beware of prices that seem extraordinarily low. This may be because the camera is refurbished or being sold on the gray market

Wireless charging is becoming more and more standardized, and even more common. Popular smartphones such as iPhone 8, iPhone 8 Plus and iPhone X support wireless charging. If you want to charge your smartphone wirelessly, you’ll need a smartphone that supports wireless charging at first.

After you chose a smartphone, a compatible wireless charging plate is necessary to place your phone on. Essentially, the fundamental of wireless charging is that it uses magnetic induction to transmit energy. There are five mainstream standards of wireless charging on the market, Qi, Power Matters Alliance(PMA), Alliance for Wireless Power(A4WP), iNPOFi and Wi-Po. Different standard has different benefits. Also, different smartphone matches different standard wireless charging pad.

Here I would like to recommend Anker 10W fast charge wireless charging pad which is made for all Qi-enabled phones, like iPhone X and iPhone 8 line, Samsung Galaxy line from S7,  it’s much faster than traditional 3.5-5W chargers since it’s able to support 7.5W-10W output.

If you just bought a new or expensive smartphone, what you would do at first would possibly buy a case or a popsocket for it, let alone it is an iphone X . You want to protect the new gadget, meanwhile you want to  enjoy the convenience of wireless charging. So would wireless charging still work with a case or popsocket? There’s plenty of debate on both sides of the argument.

One comment on MacRumors said his popsockets will not allow it to make a good connection to the wireless charger. It will connect at first,  but then loses the connection within like 30-60 seconds. That is nonnegligible for one love the popsocket, and can see it being really handy for the iPhone X. Compared to smartphone case, popsocket works better in my point of view because it takes up a less space and you can still lay the phone flat on its back even with it attached. In another aspect, someone bought the popsocket and his wireless charging still works without a  case on

There are different situation comes out when people wireless charging their smartphones with the case or popsocket. One of the key factors affects the wireless charging is that the material. For example, the rubber material is better than the metal material. It can transfer faster and more stable. While some case and popsocket are made of the hybrid material, it is more difficult to distinguish the problem source. Beyond that, a compatible and suitable wireless charging plate such external factor as I mentioned also affect the wireless charging.

Do you have experience with a popsocket or a case with wireless charging?  How do you deal with the situation? Welcome join the discussion.

Bluetooth problem

If there is any problem happened in Bluetooth, please make sure that you have opened the Bluetooth in you device and the distance between device and Bluetooth speaker is closer than 3 feet without blocked by any barrier. After these, if your problem is still there, please delete the matching record of speaker in your device.

When you open the speaker, if there is no light in LED and Bluetooth can’t be connected, you need to check if the speaker is out of power. If not, then your speaker may be broken. If the LED light and the voice reminder work well but no Bluetooth connection, you can check if it asks about Pin number “0000” or if other device can get connected. You can also reopen speaker or Bluetooth to retry.

Loud noisy bothered in Bluetooth connection means that the speaker have problem in Bluetooth module, and the connecting distance is depend on speaker, smartphone brand, and environmental disturbance. However, if the bluetooth connected normally but there is no sound coming up, there are some special solutions here.

Battery and charging problem

In order to extend long-term performance of built-in battery for speakers, please turn off the speaker when charging, especially when it is low battery. If the built-in battery consumed quickly or unable to be charged, either user didn’t use it in a right way or there is problem with the battery itself.

Radio problem

There may be problem that radio can’t be used or receive program. The radio function in our Bluetooth speaker is just able to get short wave with earphones as antenna. So, please remember to use earphones.

Hands-free device problem

Please do not leave built-in microphone far than 0.65 feet to use the hands-free calls, or you may hard to hear the voice from the call.