Electronics Store Cutebuy: One-Step-Shop For Everything

Monthly Archives: October 2020

  • What is a selfie stick

    The selfie stick is a self-portrait artifact that has taken the world by storm. It can be stretched between 20cm and 120cm in length. Users only need to fix a mobile phone or a point-and-shoot camera on the telescopic stick, and take a multi-angle selfie through the remote control.

    The stainless steel used for selfie sticks is thin, and aluminum is hard enough, light enough, and anti-skid.
    Choose the tripod all-in-one selfie stick. The maximum telescopic length should not exceed 90cm, which is too long and unstable.
    Choose a standalone Bluetooth rechargeable selfie stick for greener and more convenient use.

  • What selfie stick is better

    Selfie stick material
    Stainless steel: high hardness, high temperature resistance, heavy material quality, stainless steel of the same weight is expensive, and the surface can be brightened.
    Aluminum alloy: lighter material, cheaper price than stainless steel for the same weight, lower hardness than stainless steel, lower temperature resistance than stainless steel, diversified surface treatment: electroplating, anodizing, spraying.
    Telescopic pole length
    The longest length of a conventional outdoor selfie stick is between 150mm-900mm.
    Fixed bracket
    Selfie stick fixing bracket width: between 56mm-90mm
    One-piece button: It is the position of the handle of the telescopic rod that is combined with the telescopic rod and is not movable.
    Split button: a detachable small button remote control, with two kinds of power for charging and button battery, available within ten meters.

  • The difference between a card reader and a USB flash drive

    Card reader is a card reading device, which needs to be used with the insertion of a matching memory card (storage medium), including our common SD card, TF card, CF card, etc. The card reader is the bridge between memory card and computer equipment, which is responsible for the transmission of both.
    The U disk is called the flash disk, is a flash media and data interface integration, storage media does not support assembly and disassembly, through the USB interface to connect the data terminal, plug and play.
    The transmission speed of the card reader mainly depends on the reading speed of the data interface and memory card, while the transmission speed of the U disk mainly depends on the reading speed of the flash media of the data interface and the U disk.

  • How to choose a card reader

    When the mobile phone or camera does not have a data cable to connect to the computer, take the memory card out and insert it into the card reader, and then connect it to the USB port of the computer, so that the data inside can be read. The card reader is a tool for reading and writing files in the memory card. Although camera pictures do not have to go through a card reader before they can be exported to computers and mobile phones, the convenience of using a card reader to read files is widely recognized. When buying a card reader, we must first ensure that the interface type is consistent with the memory card we are using

    In addition, the card reader also has a difference in transmission speed, which is mainly reflected in the performance indicators of the transmission interface.

    For example, the USB3.0 interface is significantly faster than USB2.0. Of course, this requires that the computer's USB interface is also 3.0 standard.

  • What's the difference between a photo bag?

    Backpack: The most common Camera bag. Advantages: can carry more equipment, because the shoulders, the weight is relatively light, can walk long distance, take out equipment speed is medium. Suitable for a variety of subjects, travel, scenery, culture, wedding, outdoor, daily commute to work with a specially designed backpack. Roller case: can put a lot of equipment, equipment protection is the best. Feel like you can bring your entire studio with you. This is a great way for a studio to carry a lot of equipment for small moving photography tasks, such as ceremonies, meetings, etc. Lens barrel: Mainly for a single lens, then put in other large bags, but also can be belt. Strong mobility, can be flexibly matched according to many occasions. In addition, each type of bag has the difference in size, carrying system, waterproof and anti-theft, design of accessory space, access way, expansibility, appearance design and so on. Different designs and differences allow each package to adapt to different application scenarios.

  • Why do we need a photo bag, not a regular bag

    Ordinary backpacks do not have a protective liner, and they may stumble and fall during the process of putting the backpack down and walking around, damaging the equipment. And the photo bag has a protective shell and liner, which can protect your heart, liver and baby from damage. The putong backpack is not designed for photographic equipment, so the space utilization rate is very low, because most of the photographic equipment is not square, a large bag, can not fit several pieces of equipment, we have to worry about the equipment collision friction damage. The interior of the photo bag is reasonably separated according to the shape of the photographic equipment, so that every inch of space can be used as best as possible. There are buffer partitions between the equipment to protect them from damage caused by fighting with each other. Ordinary backpack can only take the equipment from the top, while the fast photography backpack can quickly take the equipment from the side, which greatly facilitates the photographer to steal the scene. And anti - theft, waterproof and so on

  • The viewing angle and scope of surveillance cameras

    The lens of a surveillance camera is generally divided into two types: fixed focus and zoom. We should choose a lens with a suitable focal length according to the scope and size of the scene to be monitored. General fixed focal length lenses mainly have focal lengths such as 2.8mm, 3.6mm, 4mm, 6mm, 8mm, 12mm, 16mm, 25mm, etc. The zoom lens is divided into manual zoom and electric zoom. Manual zoom, when we need to install, according to the monitoring range, manually adjust to the appropriate focus. The electric zoom can be remotely controlled to adjust the lens focal length by controlling the keyboard, DVR/NVR, client software, etc. at the back end. The focal lengths of common zoom lenses mainly include 2.8-12mm, 2.7-13.5mm, 3.5-11mm, 5-50mm, etc. For lenses with greater zoom capabilities, we can choose a cloud billiard ball machine. The built-in lenses have 10 times, 12 times, 18 times, 20 times, 22 times, 30 times, 60 times and other zoom capabilities. At the same time, these pan-tilt cameras generally support the pan-tilt up and down 90 degrees, left and right 360 degrees to choose, which can achieve all-round monitoring without dead ends.

  • Methods and skills for purchasing surveillance cameras

    Before buying a surveillance camera, you must think clearly why you want to buy surveillance, where you want to install it, and what kind of purpose you want to achieve. If it is installed in the financial field, road traffic, or large-scale surveillance, then it is recommended to choose a set of network HD The general budget of the camera is a bit higher; if it is installed at home to watch the elderly, children or pets, it does not need to be as precise as the lens, and the budget is relatively low. The light environment around the camera is also one of the important factors in deciding what type of surveillance camera to use. Generally speaking, if the long-term working environment of the camera is in a darker place, then it is better to choose a full-color night vision camera. When someone enters the surveillance area, the white light that comes with the camera will turn on

  • Antenna signal of wireless router

    In a wireless router, an antenna can achieve the purpose of enhancing wireless signals, which can be understood as an amplifier of wireless signals. Antennas have different radiating or receiving capabilities for different directions in space, and depending on the directivity, antennas have two types: omnidirectional and directional.
    Omnidirectional antenna: On the horizontal plane, the antenna with no maximum direction of radiation and reception is called omnidirectional antenna. Since omnidirectional antennas are non-directional, they are mostly used in the central station of point-to-multipoint communication. For example, if you want to establish a wireless connection between two adjacent buildings, you can choose this type of antenna.
    Directional antenna: The antenna with one or more directions with the greatest radiation and reception capabilities is called a directional antenna. The energy of the directional antenna is concentrated, and the gain is higher than that of the omnidirectional antenna. It is suitable for long-distance point-to-point communication. At the same time, due to its directivity, it has strong anti-interference ability. For example, in a residential area, when you need to establish a wireless connection across several buildings, you can choose this type of antenna.

  • Router with wireless coverage

    The wireless router is a router with wireless coverage function for users to surf the Internet.
    The wireless router can be regarded as a repeater, which forwards the broadband network signal from the wall at home to nearby wireless network devices (laptops, wifi-enabled mobile phones, tablets and all devices with WIFI function) through the antenna.
    The popular wireless routers on the market generally support four access methods of dedicated line xdsl/cable, dynamic xdsl, and pptp. It also has other network management functions, such as dhcp service, nat firewall, mac address filtering, dynamic domain name and other functions. [1]
    Generally, the popular wireless routers on the market can only support 15-20 devices online at the same time.
    The signal range of a general wireless router is 50 meters in radius, and some wireless routers have a signal range of 300 meters in radius.

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