Product BriefBluetooth car MP3 player,Built-in FM transmitter, MP3 decoder, and stereo Bluetooth wireless transmission chip,Able to play audio or songs from TF card, U disk, mobile phone through your car stereo,No need to modify your car,You can enjoy music while driving and you can use hands-free mobile phone to talk,Entertainment safety is rightTechnical parameters and packing information【Technical Parameters】Rated working voltage ---- 12 ～ 24VPower consumption rate -------- 0.5WWorking temperature --------- -10 ～ 70 degreesWorking temperature --------- 0 ~ 90%Frequency response -------- 20Hz ～ 15KhzAudio format-MP3Support Bluetooth protocol --- HFP / HSP, OPP, A2DP / AVRCP, PBAPSignal to noise ratio-68dBBluetooth version -------- v3.0 + EDRBluetooth Sound Processing-Audio Sound-A2DP (Advance Audio Distribution Profile)Bluetooth transmission distance -------- 10 ～ 15mFM transmission frequency ----- 87.5 ～ 108.0MhzUSB fast charge output ---- 5V / 1A                                     Features【Features】Play songs in U disk and TF card,Through the Bluetooth A2DP technology, transfer the audio in the mobile phone and high-quality stereo music to the car stereoSupport HFP / HSP, OPP, A2DP / AVRCP, PBAP Bluetooth protocolFM transmission frequency range: 87.5 ～ 108.0MhzBluetooth hands-free function, with DSP echo cancellation functionUSB interface can charge all kinds of mobile phones, the maximum charging current is 1AWide voltage power supply 12V-24V, suitable for various voltage cars,