ZALA Bluetooth FM Transmitter Car Charger Kit 1USB Port with 5V/2.5A and Hands-Free Calling for iPhone ,Samsung,LG,HTC (Silver) Quick Charge: 5V/2.5A USB car charger can charges your favorite mobile devices fast, and it can automatically adjust the output power to different smart phone Hands-free Calling: Simply paired your phone with the Bluetooth FM Transmitter and its hands-free system can set free your hands during answer the calls and let you safely drive. With adjustable control panel you can change the play, pause, sound controls.,Serve as power bank can charge your mobile devices. Friendly Design: All-in one Button. We innovatively put the answer/end a call/play/pause into a single protruding button. This is the best choice for car drivers. Can read U-disk and TF Card.