Bluetooth FM Transmitter,ToBeoneer wireless In-Car MP3 Player FM adapter with 5V/2.5A USB Car Charging,Hands-Free Calling Support SD Card/USB/3.5mm Audio Aux for iPhone 6s 6 5S 5 iPod iPad Quick Charge:5V/2.1A 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. Support Multi-approaches Music Play: This is a new Bluetooth MP3 Player FM Transmitter Hands-free Car Kit Charger, which support USB driver and Micro SD card and can automatically play and transmit the MP3 files of USB driver and Micro SD card after matched with your radio by the frequency. Friendly Design:All-in one Buttoon-we innovatively put the answer /end a cal/play/pause into a single protruding button. This is the best choice for car drivers. Package includes: 1 x FM transmitter,1 x USB charging cable.30 Days Money Back Guarantee and Our Friendly Service - 24 hours email customer service response.