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As wireless technology and microelectronics technology, short-range wireless communications technology has been rapid development, the paper discusses in detail the short-range wireless communications technology Bluetooth technology and its application in the headset, the Bluetooth headset hardware design, function realization, production technology, testing methods are analyzed, and finally on the Bluetooth technology application prospects are briefly described, this paper aims to carry out Bluetooth technology, Bluetooth headset technology, marketing and projects for the Amoi credible Bluetooth headset technical guidance. In this thesis, theory and practice approach, focused on solving the Bluetooth headset communication issues and interference in the process of testing issues. The following is a summary of Bluetooth and the Bluetooth headset descriptor. Bluetooth is a wireless data and voice transmission open standard, it will a variety of communications equipment, computers and terminal equipment, all kinds of digital data systems and even the home to link up wirelessly. Its transmission distance of 10cm ~ 10m, if the increase in power or add some peripherals can reach 100m transmission distance. It uses the 2.4GHz ISM band and FM, frequency hopping technology, the use of forward error correction coding, ARQ, TDD and baseband protocols. TDMA time slots every 625μs, compliance rate of the baseband 1Mb / s. Bluetooth support 64kb / s real-time voice transmission and data transmission, voice coding for the CVSD, transmit power was 1mW, 2.5mW and 100mW, and use the global harmonization of the 48-bit device identification code. Since Bluetooth wireless interface instead of using the wired cable connection, and highly portable, and is suitable for a variety of occasions, with the technology and low power consumption, small harm to human body, and the application is simple, easy to implement, it is easy to spread. Bluetooth technology is intended for a small range of mobile devices to connect, so essentially it is a cable replacement technology. It can be used within a short distance to replace the current variety of cabling schemes, and to overcome the shortcomings of infrared technology to penetrate walls and other obstacles, through a unified short-range wireless link between digital devices in a variety of flexible , safe, low cost, small power consumption of voice and data communications. Bluetooth headset is Bluetooth technology and the perfect combination of mobile phone crystal. Bluetooth headset can best embody the \In the liberation of the hands and the shackles after a certain distance, answering and call will become very relaxed and negligent meaning, do not worry about the weight and volume phone, do not worry, \commercial economic activities are concentrated in countries and regions will have broad application prospects, which a face of short-range wireless communications technology individuals, between people, and the interaction between the mobile phone, it will play a huge role.
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