Wireless transmitting music or calls from any Bluetooth-enabled phone to your car has Never been easier. Simply pair your phone with the Bluetooth FM Transmitter、 choose an unused FM transmitter features hands-free cell phone calling with built-in mic and a USB charging port to charge your portable devices. Support two phones at the same time. With this product、 you can greatly enjoy the musics and picking the call up、 and no need worry about your mobile devices power off. It is perfectly suitable for the car owners. You will love it! Buy it today! You can not miss it!Note: This item can not only make a call handsfree but also playing music via bluetooth