Specification:
This device releases stream music and calls directly from your Bluetooth device to your car FM stereo system. The built-in microphone provides you with an amazing hands free function, it is also with a Micro SD card/USB Disk slot that lets you enjoy favorite MP3 and WMA tunes by your car¡¯s stereo system, And Most of functions achieved by the Rotation.
-Bluetooth version: Action 4.2
-Bluetooth Protocol: AVRCP, HFP