All devices-including laptops, mice, printers, mobile phones, PDAs, digital cameras, etc., can exchange voice and data through "Bluetooth" technology. At the same time, you can also connect to the outside world through access points (such as PSTN, ISDN, LAN, and ADSL).

Bluetooth technology is an open global specification for wireless data and voice communication. Its essential content is to establish a universal radio air interface (Radio Air Interface) for the communication environment between fixed devices or mobile devices, and further communication technology and computer technology. Combined, it enables various 3C devices to communicate or operate within close range without wires or cables connected to each other.

  Simply put, Bluetooth technology is a technology that uses low-power radios to transfer data between various 3C devices. Its biggest advantage is that it can replace various messy transmission lines.

The traditional transmission line has a length limitation, and there are certain requirements for the location of the device. If the transmission line is too short, the device cannot be too far away from the computer; the transmission line is too long and has to be wrapped around, troublesome and unattractive.

  After switching to Bluetooth wireless transmission, you can break through the constraints of the transmission line. The computer needs to be connected to the Internet through a mobile phone. The mobile phone does not have to be placed next to the computer or even need to be taken out of the pocket. It can be transmitted freely within a distance of ten meters. There are no restrictions.