1.Dual USB ports ,Dual USB ports allow you to charge two device simultaneously. The fast charge output gives you a fast and efficient charging experience.2.Hands-free,The car MP3 player supports hands-free calling, safe driving. With the buttons on the Bluetooth-compatible FM transmitter, you can easily control the call, music, volume, frequency and playback mode.3.Stable Bluetooth-compatible connection,The intelligent Bluetooth-compatible technology enables you to connect the play without wire. And it offer stable and fast transmission.4.U disk and TF card,Insert the U disk or TF card into the expansion slot of the device, the device will automatically recognize and play MP3/WMA music files.5.multi color atmosphere lights,The player screen has 7 color atmospheres light. It can not only decorate your car interior creating a wonderful light effect when it is used, but also help to lighting at night, make you easy to operate FM and music play at dim condition.