FM Transmitter, Breett&reg; Car MP3 Radio Multifunctional 3.5mm Trapezoid FM Transmitter with Car Charger for iPhone 6 6s 5s 5 4 Samsung HTC Sony Blackberry & GPS FM Transmitter, talk, charge and play music on the go! Perfect audio transmission function. Allows hands-free phone conversation through the car stereo. Play all of your portable audio devices, smartphones with 3.5 mm jack through your car stereo system. Supports full frequency range FM radio to avoid interruption. Comes with extra USB port to charge your device while driving. FM radio transmitter, car charger ensures continuous hours of listening pleasure.