Fast charging refers to a charging method that can make the battery reach or close to a fully charged state within 1 to 5 hours. So the main difference between fast charging chargers and ordinary chargers is the charging time. With the continuous update and iteration of mobile phones, the charging time of the mobile phone has been fully charged from 10-15 hours before to 1-2 hours now because of the use of fast charging. A well-known mobile phone’s advertisement "Charge for 5 minutes, talk for 2 hours" is because it uses the fast charging function, charging in a short time can reach the power required for 2 hours of talk.
There are two main directions for increasing the charging speed, one is to increase the voltage and the other is to increase the current. Increasing the voltage will increase the heat production during the charging process, accelerate battery aging and may bring safety hazards, so now the mainstream fast charging method is to increase the charging current. The charging currents of common mobile phone chargers are 0.5A, 1A, and 1.5A. , 2A, 2.5A, 3A, it is generally considered that chargers with a current exceeding 2A including 2A are fast charging chargers, and chargers below 2A are ordinary chargers.
From the outside, printer is mainly composed of a shell, a control panel, an interface, a paper tray, a paper jam guide, a paper feeder, and a paper output extension board;
Extended information
Classification and characteristics of printers based on component structure
Classification: According to the data transmission mode, it can be divided into serial printers and parallel printers; but according to the working principle of printers, printers can be divided into two categories: impact type and non-impact type.
In case the printer generates heat, smoke, peculiar smell, abnormal sound, etc., please cut off the power immediately and contact the information personnel.
No other items are allowed on the printer. When the printer is not used for a long time, please unplug the power plug from the power socket.
Just in case, when there is a thunder nearby, pull out the power plug from the socket. If it is plugged in, the machine may be damaged.
Some projectors have a USB port. You are more likely to find one on a document projector than a home theater model, although it is rare in both cases. However, if you are lucky enough to have this option, it is by far the easiest way to connect a phone to a projector. Just connect the cables to both devices, make sure the projector is set to the correct input channel, and then turn them on.
Let me talk about the wired connection first: there are two ways: one is if the smart phone supports MHL connection, then directly buy an MHL cable, connect one end to the phone, and the other end to the HDMI interface of the projector, and then select the projector The signal source is high-definition signal (HDMI interface input), which can realize the same screen of the mobile phone to the projector.
Product Features: 1. Water-Resistant Water-Resistant for Xiaomi Mijia cameras is Water-Resistant even 45 m/49.21yd below in water. The lens made of tempered glass material is dust-proof, scratch-resistant with high transmittance. The flat lens will provide you with more high-definition vision. 2. Chest Strap This adjustable chest strap is suitable for Xiaomi Mijia,for GOPRO / SJCAM / Xiaoyi and other action cameras. You can shoot from different angles with it. It is also widely used in skiing, cycling, rowing and so on. 3. The O-shape Bike Clip The durable bike clip will prevent your camera from falling off. It does not damage the membrane nor take up much space. Moreover, it can rotate freely in 360 degrees, and it can be disassembled easily. You can fix it on the rear-view mirror or the handlebar whose diameter is about 2-3cm/ 0.79- 1.18in. And it's applicable for racing bicycles, motorcycles, electric cars and etc.. 4. The Wrist Strap for Fixing the Remote Control It can fix the remote control on the wrist to capture the screen quickly, and the size is adjustable. 5. 360 - degree Palm Strap (1). For GoPro arm strap can be applied to tie the DV on the arm for shooting, and it's suitable for Hero 1 / 2 / 3 / 3+. It can be used for arms, wrists and all objects in similar size (2). With the design of a soft cushion on its back, it's more comfortable to wear. And you can connect it to the waterproof shell directly for use. Moreover, a fixing screw is provided exclusively (3). Applications: cycling (bicycles and motorcycles), skiing, surfing and other sports. (4). It's elastic even when it's extended to about 32cm/12.60in. And it can be tied on arms, wrists, calves and parts with similar diameters. In addition, it's applicable for hiking, wading, cycling and diving. 6. The Helmet Belt It can fasten for Xiaoyi camera to the hollow helmet for cycling, skiing, rowing boat or other sports. The adapting belt can fix the camera quickly and conveniently and it's adjustable in length. 7. The Set for Fixing the Helmet Helmet dedicated selfie stick and extension rod for distancing your face. 8.The Adapter Connect the tripod adapter for Mijia mini action camera, then the camera can be connected to the conventional tripod. 9. The J-shaped Mount It is applicable to the chest strap and ancillary accessories for shooting angle adjustment. 10. Wrench Screw It is more labor-saving and convenient to tighten the camera with this screw, which make it easier to use. 11. Anti-fog Inserts They can be inserted in the waterproof camera shell on both sides or at the back, which effectively prevents fogging in cold and humid environments.
Package weight: 0.652 kg Product size (L x W x H): 19.00 x 16.00 x 4.50 cm / 7.48 x 6.3 x 1.77 inches Package size (L x W x H): 21.00 x 18.00 x 6.50 cm / 8.27 x 7.09 x 2.56 inches
Package Contents: 1 x Water-Resistant Case, 1 x Chest Strap, 1 x Helmet Strap, 2 x Adapter, 1 x Remote Control Wrist Strap, 4 x Wrench Screw, 1 x 360 - Degree Palm Strap, 12 x Anti-Fog Insert, 1 x Set for Fixing Helme
COMPACT DESIGN:Ultra compact and powerful suction cup with locking bar. The cup size smaller than any GPS unit in your windshield. Dual-jointed arm allows for virtually any angle, 180 degree rotary head for easy framing.Suction Cup Mount for GoPro is made of high quality polycarbonate/polypropylene. 7cm diameter base. VERSATILE SURFACE:Excellent suction to almost all clean flat materials include plastics, metals, glass, ceramic etc. Firm Attachment to your CAR'S DASHBOARD, CAR'S WINDSHIELD, CAR'S WINDOWS, BOATS, MOTORCYCLES. Stable in smooth flat surface. Recommended for non-impact activities only, not recommended for surfing, snowboarding or other high-impact sports. EASY TO SETUP:GoPro suction cup mount car is Easy to install and remove, no tool needed, no residual and scratch left. Quick release base makes moving between shots and locations quick, simple and convenient.
Package weight: 0.096 kg Product size (L x W x H): 11.68 x 10.16 x 5.58 cm / 4.6 x 4 x 2.2 inches Package size (L x W x H): 12.00 x 11.00 x 6.00 cm / 4.72 x 4.33 x 2.36 inches
Package Contents: 1 x Suction Cup Mount Holder，1 x Quick Release Buckle Bracket
Main Features • Large frequency range, with clear and authentic sound reception • With user manual included, easy to use and operate • Mini size and light-weight, your ear will not feel tired or uneasy • High quality plastic material, durable and will not hurt your skin
Parameters • Maximum sound output: 130dB • Sound gain: more than 50dB • Total harmonic distortion: less than 10 percent • Frequency range: 300 - 4500Hz • Input noise: less than 32dB • Operating voltage: 1.5V • Power: 3 x LR44 battery ( included )
Using Instructions Step1: before you use this item, you have to turn the O - N switch to O ( off ), and turn the sound volume to the minimum Step2: put this item on your ear, keep it tightly Step3: turn this item on ( O - N to N ), adjust the volume until you hear clear sound
Taboos: otitis media or ear suppuration who are disabled.
Package Contents: 1 x Hearing Aid, 3 x Battery, 3 x Earplug, 1 x English User Manual
Wide frequency range: 300--4500 Hz
Package weight: 0.115 kg Product size (L x W x H): 4.60 x 3.80 x 0.90 cm / 1.81 x 1.5 x 0.35 inches Package size (L x W x H): 17.00 x 8.50 x 1.50 cm / 6.69 x 3.35 x 0.59 inches
Package Contents: 1 x Host , 3 x Battery, 3 x Earplug, 1 x English Instruction
Description: - Simple to Use, Record and Photography By One Touch. -Records to a microSD card (expandable to 32GB) - 640x480 video resolution -One-touch button operation -Suitable for business, lawyers, journalists and other people use. -It also can act as a novelty small gifts, small toys to give friends and relatives.
Pixel: 200w Screen size (inch): Other Touch screen: No
Storage medium: Other
Screen resolution: 640 x 480 (VGA)
Image resolutions: 640 x 480 (VGA) Default resolution: 640 x 480 (VGA) Video Frame Rate: 30FPS Function mode: Video,Capture FOV: 180 Degree File format: JPEG,AVI Microphone: Built-in Interface: TF Card Slot,Micro SD Card Slot Other Functions: PC camera
Battery Capacity (mAh）: No Working Time: 80minutes Standby time: No Charging Time: 3 Hours
Package weight: 0.086 kg Product size (L x W x H): 2.60 x 2.60 x 2.70 cm / 1.02 x 1.02 x 1.06 inches Package size (L x W x H): 9.00 x 12.00 x 3.00 cm / 3.54 x 4.72 x 1.18 inches
Package Contents: 1 X Belt , 1 x MINI Camera , 1 x USB Cable , 1 x English manual , Not include the SD Card
Description: Power meter socket is a kind of monitoring and testing instrument, which can measure the electricity consumption, current, voltage, electricity consumption and cost of the electrical appliances connected to it, and it has the functions of electric charge alarm, electricity consumption alarm and overload alarm.
Features: - LCD display: Backlight design is easy to read data of time, watt, cost, etc. - Plug-in design: Simply plug this device to your wall electric outlet - Measuring function: Can measure various parameters, such as power, voltage, current - Save your money: It has alarm function of electricity cost, when the electricity charge reaches the set alarm fee, it will remind you - Resetting: If an abnormal display appears or the buttons produce no response, the power meter must be reset - Button design: With buttons design, easy to operate and convenient for daily use - Memory feature: Adopts 3.6V rechargeable battery (built-in), which is used to store the total power and set memory
Use Instruction: Simply plug the meter into the household wall socket and then plug your appliance into the power meter.
Cautions: - For safety, please make sure the connected appliance has no short circuit, overload and wiring aging conditions. - Only to be used indoor and in dry conditions. - It is necessary to use electricity.
Digital voice recorder MP3 player Time setting:Real Time Display Support a key lock screen function High-quality studio recording MICROPHONE,more clear Connecting the terminal box can record telephone calls Automatic recording when have sound ,no sound automatic uspended Support external audio speakers playing loud sound HD Support AB repeat function You can play MP3,WMA music file The clock function High-capacity polymer battery of environmental protection(220mAh) Low battery indicating function Specification: Memory:16GB Recording Format:MP3,wmv Recording Bit Rate:1536 Kbps Recording Save:High quality recording for 96 hours /normal recording for 136 hours Recording Source:Telephone recording,Built-in MIC Battery:220mAh(Can Recording about 15 hours) Support System:for Windows 2000/XP/7/Vista/8/IOS
Package weight: 0.266 kg Product size (L x W x H): 9.60 x 3.30 x 1.00 cm / 3.78 x 1.3 x 0.39 inches Package size (L x W x H): 15.00 x 5.00 x 3.00 cm / 5.91 x 1.97 x 1.18 inches
Package Contents: 1 x Voice Recorder , 1 x USB Cable , 1 x External Microphone , 1 x 3.mm Audio Cable , 1 x Earphone , 1 x Telephone Adapter , 1 x User Manual
Package size (L x W x H): 9.00 x 6.00 x 1.70 cm / 3.54 x 2.36 x 0.67 inches Package weight: 0.046 kg Product size (L x W x H): 2.80 x 1.60 x 1.45 cm / 1.1 x 0.63 x 0.57 inches Product weight: 0.023 kg
Package Contents: 2 x Bluetooth Earphones (1 Black, 1 White ), 2 x Charging USB Cables
