Gogroove Flexsmart X2 Wireless In-car Bluetooth Fm Transmitter with Charging , Music Control , and Hands-free Calling for Smartphones , Tablets , Mp3 Players & More! On-board volume, play settings, and phone controls|Built-in microphone with enhanced voice detection FM tuner with an Auto-seek feature to help find the clearest FM station Universal USB port lets you charge your Smartphone or MP3 Player while streaming Includes "line in" port and 3.5 aux. cable for connecting non-Bluetooth enabled devices Item model number	GG-FLEXSMART-X2