Designed to offer an all-in-one handsfree solution， the C11 2-in-1 Car Handsfree FM Transmitter with MP3 Player !#!amp!*! Car Charger is your perfect choice! It uses FM transmission to stream music and call through your car stereo. Built-in microphone allows you to speak to callers without picking up the phone when you are driving. Moreover， it is built with a USB port to charge your electronic device. Slim and sleek design blends in well with your car interior. Don′t hesitate to buy now!                                    Features            Perfectly integrate integrates MP3 player， hands-free call， as well as a USB charging portUse FM transmission to stream music and call through your car stereoBuilt-in microphone allows you to speak to callers without picking up the phoneSupport external flash disk and line-in functionSolid construction resists shock and temperature change during the journeySlim and sleek design blends in well with your car interiorPlug-and-play design， easy operation                                                            Specifications            Input Voltage    12V-24V    <br>Output Voltage    5V / 2.1A    <br>Color    Black    <br>Material Type    Plastic    <br>Frequency Range    87.5- 108.0MHz    <br>Dimensions    (3.23 x 1.34 x 0.98)" / (8.2 x 3.4 x 2.5)cm (L x W x H)    <br>Weight    0.74oz / 21g    <br>                                                            Package Includes            1 x Car MP3 Player1 x Audio Cable