Bluetooth radio adapter can bring Bluetooth radio, and can paired with the phone, with Bluetooth headphones, so as to achieve the liberation of your hands, unfettered purpose of the call. You can connect to any Bluetooth headset or Bluetooth handsfree support its normative standard Bluetooth phone, audio device, used in conjunction with a Bluetooth radio adapter. Walkie-talkie in the 10m range, without manual operation, without interference of the voice control system, automatic speech made when entering the state, not by listening to speech automatically enter the state. And Bluetooth Headset with intercom distance of 10 meters uninterrupted connection, automatically reconnect to connect the signal circuit design to ensure no interruption. The product is user-awaited solution, easy to operate and comfortable to wear. Widely used in police, fire, transportation, construction, service industry personnel, etc. This product is a Bluetooth interface provides a secure authentication function, when the user is set to use secure authentication when connecting devices must be authenticated only by authenticated users to their communication.