蓝牙耳机免提协议,定义了耳机免提通讯的规范，是蓝牙技术中应用最多的一种技术。对于蓝牙开发人员不可多得的资料。,Bluetooth Headset Hands-free protocol, the definition of a hands-free communications headset norms, the application of Bluetooth technology are the most technology. For Bluetooth developers inval