TheElves Wireless Car Bluetooth FM Transmitter Radio Adapter, Car Kit with Dual USB Charger Additional Cigarette Lighter and Handsfree Calling Stereo Music MP3 Player Function(Black) 5 Core functions:FM transmitter,handsfree, bluetooth mp3 play,dual USB charging ports,additional cigarette lighter Voice quality:Crystal clear and nature voice based on noise suppression (CVC) technology, A2DP function brings you higher quality sound of stereo music via bluetooth Active pairing:Easy and fast pairing with your bluetooth device.Can connect two phones at the same time. Convinience:Two-Port Car Charger charges two mobile devices at the same time.Additional cigarette lighter support your car DVR,electronic dog,car purifier TheElves offers a limited 1-year manufacturer's warranty for all our products, and is committed to ensure that you are satisfied with your shopping experience. TheElves Warranty is only available when you purchase product from TheElves,If you purchase product from any other seller,you are purchasing the product without a warranty.