Bessmate Wireless In-Car Bluetooth FM Transmitter Radio Car Kit with Dual USB Car Charger and Hands-Free Calling Compatible with iPhone, Android Smartphone Tablets and MP3 Players Multifunctional Car kit: Bluetooth FM Transmitter with Hands-free Car Kit charger, which support USB driver and SD card(32 GB). It can automatically play and transmit the MP3 files of USB driver and SD card with excellent hi-fi stereo sound quality Dual USB Charging Port: 5V/2.1A car charger can chargers different mobile device fast, and adjust the output power to different smart phone automatically Hand-Free Calling: Paired your cellphone which enable you enjoy the music or make calling freely which guarantee your driving safety Widely Compatibility: Universal design for all types of devices! Compatible with iPhone, Android smartphones, iPad, mp3 and more device with 3.5 mm jack Come with Remote Control: Switching music, phone calling and realize different function of your device according to your requirement more convenient