Buit-in rechargeable battery, which has long battery life.
It solves the imitations of audio equipment perfectly and extends a variety of audio equipment transfer function.
Fast connection more stable sound
Bluetooth Standard: Bluetooth 4.2
Support: A2DP, AVRCP
Support: MP3, WAV, WMA,APE,FLAC
Transmission distance: more than 20M
Power supply: 3.7V
Working time: more than 10H
Charging time: 2H
Input output connection: 3.5mm Stereo earphone holder
1*2 in 1 Transmit Receive Adapter