Features: Integrate handsfree calls, FM transmitter, Bluetooth, USB charger and MP3 player Wirelessly deliver phone calls from Bluetooth-enabled smartphone to car stereo Built-in microphone allows you to speak to callers without picking up the phone Full duplex and DSP technology, Excellent sound quality Echo cancellation and CVC noise suppression Supports A2DP playback LCD screen displays name of the song, soundtrack and caller number Built-in decoding chip, play music from USB flash drive and SD card Support MP3/WMA music format Well-positioned buttons for quick music and call control Offer a USB port for cellphone or tablet charging Line in function, connect to MP3/MP4 players via 3.5mm audio cable Directly plug into cigarette lighter for power supply Come with a remote control for added convenience Sleek modern design, easily fit in the car Specifications: Rated voltage:12-24V Limit voltage:8-36V Power Consumption:0.5W Working temperature:0-50C Audio Format:MP3/WMA SNR:>60dB Distortion:0.1% Bluetooth Version:2.0 Bluetooth Transmission Distance:10-15m Mic Effective Range:0-2m Transmission Frequency:88.7-107.9MHz Reception Frequency:20Hz-15KHz Charging Output:DC 5V/1A Bluetooth sound process:with A2DP (Advance AudioDistribution Profile) Function Bluetooth transmition distance:8m Material:ABS Color:Black Dimensions:27x4.5x3cm(LxWxH) Weight:198g