What is a Bluetooth headset?
The Bluetooth headset is to apply Bluetooth technology to the hands-free headset, so that users can avoid the annoying wires and easily talk in a variety of ways.
Bluetooth headset specifications
Bluetooth headsets are available in HSP, HFP and A2DP formats. HSP provides the basic functions required to communicate between a mobile phone and a headset. HFP has added some extended functions based on HSP, and the mobile phone function is relatively complete. It was originally only used to control the mobile phone from the Bluetooth headset fixed car hands-free device. A2DP allows the transmission of stereo audio signals.
The principle of Bluetooth headset
The electronic devices can be connected to each other via Bluetooth. Through the wireless receiver on the chip, electronic products equipped with Bluetooth technology can communicate with each other within a distance of 10 meters. Bluetooth specifies that each pair of devices performs Bluetooth communication, one is the primary role, and the other is the secondary role. When the communication is performed, the primary side searches for and initiates pairing. After the link is successfully established, the two parties can send and receive data.