The Bluetooth technology is actually a short-range radio technology. Using Bluetooth technology, it can effectively simplify the communication between mobile communication terminal devices such as handheld computers, notebook computers and mobile phones. It can also successfully simplify the above. The communication between these devices and the Internet makes the data transmission between these modern communication devices and the Internet more rapid and efficient, and opens the way for wireless communication. To put it simply, Bluetooth technology enables some modern mobile communication equipment and computer equipment that can be easily carried, can be connected to the Internet without the aid of cables, and can realize wireless Internet access. Electronic products and information appliances such as automobiles form a huge wireless communication network.

Bluetooth technology belongs to a short-range, low-cost wireless connection technology, and is an open solution that can realize wireless transmission of voice and data. Bluetooth technology products use low-energy radio communication technology to realize voice, data and video transmission. The maximum transmission rate is 1Mb/s per second, and full-duplex communication is performed in time-division mode. The communication distance is about 10 meters, and it is equipped with a power amplifier. The communication distance can be further increased. Bluetooth products adopt frequency hopping technology, which can resist signal fading; adopt fast frequency hopping and short grouping technology, which can effectively reduce co-channel interference and improve communication security; adopt forward error correction coding technology to facilitate long-distance communication Reduce random noise interference; operate on the 2.4G Hz ISM band that is open worldwide; use FM modulation to make the device simpler and more reliable; "Bluetooth" technology products send a synchronous packet at a frequency hopping frequency, and each One group occupies one time slot, and can also be increased to 5 time slots; Bluetooth technology supports one asynchronous data channel, or three concurrent synchronous voice channels, or a channel that transmits asynchronous data and synchronous voice at the same time. Each voice channel of Bluetooth supports synchronous voice of 64kbps, the maximum rate supported by asynchronous channel is 721kbps, the reverse response rate is 57.6Kbps asymmetric connection, or 432.6Kbps is called symmetrical connection.

At present, wireless portable barcode scanner, bluetooth barcode scanner and other products produced by the Syble barcode scanner factory have been widely used in supermarkets, catering, retail, express delivery and other fields, bringing great convenience to our work and life.