Features:<br>Built-in stereo FM transmitter.Function is adjustable via the remote control.Liberating your hands from holding mobile phone during talking a call.Display phone number and name when calls come in.None of the coming calls could be missed during enjoying the MP3 player.Display and store channels (total 206 channels)， volume and track information of songs.Line-in connector for audio players.Plays music stored on compatible Bluetooth stereo devices.One key to answer\/ reject\/ pair mobile phone.Auto-play music after call ends.Support USB\/SD card.Support all Bluetooth cell phones.ALL MP3 players with 3.5mm audio port.A great companion to make your driving more freely and enjoyable.<br>Specifications:Power supply: 12VMemory: Support SD card (SD card NOT provided)Compatible with: All Bluetooth cell phone and all  MP3 player with 3.5mm audio portFM Transmitter Range: 87.5 to 108.0MHzTransmission range: 10mFM audio frequency index: S\/N: 68Stereo separation: 50Bluetooth: V2.0 ClassColor: BlackSize: 120*50*40mm (4.7*2.0*1.6in) (L*W*H)Net weight: Bluetooth FM transmitter: 47gPackage weight: 70g<br>How to Use:Turn on your car stereo and tune to the same frequency as your car MP3 player. Press the play button of the car MP3;Apply to USB device and MP3 player;Plug USB device into car MP3 player. Plug car MP3 player into cigarette lighter of your car directly;Plug in SD card. Enjoy your favorite music.<br>Package included: