This hands-free stereo Bluetooth FM transmitter modulator which can support USB Flash disk and TF card. FM transmitter function、 Bluetooth function、 USB charger function、 handsfree、 MP3 player etc combined in the item. With the product、 you can greatly enjoy music and pick the call up during driving. It is perfectly suitable for the car owners.Features:1. LCD screen display2. With infrared remote control、 easy operation 3. Handsfree、 noise suppression(CVC)4. Excellent sound、 echo cancellation5. USB charging port to charge your portable devices6. Support USB disck、 TF card/Mirco SD card7. Support MP3/WMA music format8. Full duplex、DSP technoligy9. Flexible hose10. Bluetooth audio process with A2DP function (Advance Audio Distribution Profile)11. Audio Format: MP3 / WMA / WAV / SBC12. Bluetooth protocol: HFP / HSP、 OPP、 A2DP / AVRCP、 PBAP13. Support USB disk/SD card(1GB-32GB)(Not include)Specifications:1. Rated Voltage:12-24V2. Rated current:90mA3. Power consumption:1W4. Working temperature: -20 ≧~ 50≧5. FM Frequency Range: 87.5~108MHz6. Frequency Response: 20Hz-15 KHz7. Bluetooth version: Bluetooth 2.1+EDR8. Transmit Distance: 10-15m9. USB charging output: DC5V/500mA10. SNR: 60dB11. Distortion: <0.1% 12. Left and right channel separation: > 60dB13. Hose Length: 15cmPackage include1 ～ Bluetooth FM Transmitter1 ～ Remote control1 ～ User Manual