DetailsEnjoy music and hand-free calling on the go. You may need an in-car wireless FM transmitter to stream music from your smartphone, tablet, TF card, even USB flash disk to the car stereo system. Built-in high-sensitive microphone with CVC noise cancellation for crystal hands-free call. Moreover, USB fast charge port always keeps your mobile devices fully charged. In a word, full of Power and crystal stereo music makes your travel more enjoyable and passionate.*4 Music Playing Modes - With F