collee Wireless Bluetooth FM Transmitter Radio Adapter Handsfree Car Kit Car MP3 Player In Car Music Control and Hands-Free Call with USB Car Charger (Grey) 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. USB charging station, provides you a 5V/2.1A fast charge port. Your phones or any device using the usb cable won't power off! Feed them on your way. This car FM transmitter transmits audio files from mobile devices to car stereo system via FM radio signal. It can play music files with FLAC, WAV, MP3 and WMA formats on an TF card with a capacity of up to 32GB. You can answer/hang off/reject/redial calls through hands-free function. Noise and wind will be suppressed by CVC technology to create full duplex sound quality. With 3.5mm audio port supports AUX input/output. Easy to use, Pair your Bluetooth devices (IOS/android Smartphone, pad...) with the FM transmitter, then enjoy your music/hands-free calling from your car radio channel.