蓝牙AVRCP1.5协议规范，描述了avrcp1.5，This profile defines the requirements for
Bluetooth
®
devices
necessary for the support of the Audio/Video Remote Control usage
case. The requirements are expressed in terms of end-user services,
and by defining the features and procedures that are required for
interoperability between Bluetooth devices in the Audio/Video
Remote Control usage case.
