Enegg Wireless Bluetooth FM Transmitter Car MP3 Player Hands free Kit for iPhone, Samsung Galaxy Note, LG, Nexus, HTC, Motorola Android Smartphone or Tablet, iPad - Support SD Card or USB Input, Red Double USB charging ports for charging iPod/iPhone, Samsung, iPad, Nokia and other mobile devices(Output 5V/2.1A). Support 12-24V voltage from the car cigarette lighter With compact portable design. Bluetooth hands-free function. LED Display the FM frequency/track Support multipoint connections: can connect two phones at the same time. Support USB disk and SD card, support TF card(Up to 32G) Excellent voice quality, use the DSP (digital signal process) technology to echo cancellation. With 3.5 mm line-in jack, support external audio devices Compatible Modes: IPod/iPhone, Samsung, iPad, Nokia and other mobile devices