The BC06S Wireless Bluetooth Car FM Transmitter Modulator Car Kit MP3 Player USB is a powerful car Bluetooth hands-free kit with dual USB ports， car battery voltage detection and load current detection functions. It perfectly integrates Bluetooth， MP3 player， hands-free call as well as USB charger. Built-in microphone allows you to speak to callers without picking up the phone when you are driving. And it reads MP3 files from external USB flash drive. Slim and sleek design blends in well with your car interior. It surely is worth your investment!                                    Features            Adjustable to any angle， suitable for all types of vehicles useFM full frequency transmitter functionBuilt-in digital displaySupport audio input cableDetect and display car battery voltage and load currentRead MP3 files from external USB flash driveSupport Bluetooth stereo music playerBuilt-in microphone allows you to speak to callers without picking up the phoneEcho cancellation and noise suppression (CVC) technology during a callDual USB outputs offer a total maximum output of 5V / 2.1A to other portable devicesUSB ports fits USB plug on both sidesSupport USB charging recognition agreementAuto power-off memory functionSlim and sleek design blends in well with your car interiorPlug-and-play design， easy to use                                                            Specifications            Color    Black    <br>Weight    1.27oz / 36g    <br>Material    ABS    <br>Dimensions    (4.53 x 1.06 x 0.71)" / (11.5 x 2.7 x 1.8)cm (L x W x H)    <br>Bluetooth    V3.0    <br>Transmit Frequency    2.4 GHz    <br>Transmit Distance    10-15 m    <br>MIC Effective Distance    0-2 m    <br>FM Frequency Range    87.5 - 108MHz    <br>FM Transmit Distance    5 m    <br>Frequency Response    20Hz-15KHz    <br>SNR    &gt;60dB    <br>                                                            Package Includes            1 x Car MP31 x English Manual1 x 3.5mm Audio Cable (50cm)