Details:*As soon as the auto staets、screen displays its battery voltage*Audio/music playback via Bluetooth A2DP*Support Bluetooth HFP/HSP、A2DP/AVRCP Profiles*Voice prompts the caller number when a call comes in*Frequency ranges:88.1~107.9MHz*High-performance Stereo codec*Car battery voltage display*DC9~26V wide power supply suitable for variety of carsSpecifications:*Frequency channels: 88.1~107.9MHz*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%Package list:1* Bluetooth FM transmitter1* Digital remote control