Ewin Wireless Car Charger Bluetooth FM Transmitter In Car Receiver Radio Stereo Adapter MP3 Player with Handsfree Calling and Dual USB Charging Ports Up to 2A MULTIFUNCTIONAL 6 IN 1: Wireless Bluetooth in-car Multifunction FM Transmitter enables you to do Hands-free calls, enjoy clear music, GPS voice navigation, charge your device, voltage/current detection. Better for empty channel. UNIQIUE USB DESIGN: Support charging intelligent recognition and two-way plug USB. It is recommend to charge device, using this USB interface. Easy to insert your devices into USB port while driving. EASY TO USE: Pairing your phone and FM transmitter by Bluetooth, insert device in the socket, switch to FM radio mode, make sure FM transmitter frequency the same as car's FM, then you can enjoy your music what you want. DUAL USB CHARGING PORT: Output voltage, DC 5V, 2.1A. You can charge your iPhone, IPad, Tablet and other smartphones when you enjoy driving. 2 USB socket support U Disk to play music in your car speaker. COMPATIBLE: Compatible with iPhone Apple iPhone 4 4s 5 5s 5c 6 6s plus, Samsung Galaxy S3 S4 S5 S6 S7 edge, Samsung Galaxy Note 2 3 4 edge, LG, HTC, Huawei and other Android Smartphones. 1 YEAR Limited warranty from Ewin! On-time customer service/tech support, guarantees customer satisfaction. Feel free to contact us whenever a question pops up in your head, we are always here to help.