Can transmit data into FM signal、  your car speaker can display the music and coming call from other resource.Support data from USB disc、 TF card、 Bluetooth connection etc.Support Bluetooth HFP/HSP、A2DP/AVRCP ProfilesVoice prompt the tel number when a call comesEcho cancellation and noise suppressionSpecifications*Frequency channels:88.1~107.9MHz*Transmit distance:5m*Audio format:MP3/WMA/WAV/SBC*SNR:68dB*Distortion:0-1%*Frequency response:20Hz-15KHz*Left and right channel separation:>60dB*Bluetooth version:Bluetooth v3.0*Bluetooth Profiles:HFP/HSP、A2DP/AVRCP*Operation voltage range:DC9~26V*Power consumption:<1W*Operating temperature: -10~70 Degree*Working humidity: 0~95%