Product features: 100% Brand new and high quality. Shows the current voltage of the storage battery when the car is started, monitoring at any time. Plays the music from flash disk, supports non-destructive music playing. Transmit the audio and high quality stereo music from mobile phone to your car audio through Bluetooth A2DP technology. Supports HFP / HSP, OPP, A2DP / AVRCP, PBAP Bluetooth prot