The Aluratek Bluetooth Audio Receiver and FM Transmitter is the perfect solution for wireless audio streaming in your car. Simply plug it into your car's 12V cigarette lighter adapter and pair it with your Bluetooth-enabled device. Enjoy crystal-clear music through your car's speakers by transmitting a signal to any unused FM radio station. It features hands-free calling with an integrated microphone, dual USB charging ports, and easy switching between music and calls.