Broaden your entertainment experience while you travel with Naxa's Wireless FM Transmitter with Built-in MP3 Player (NA-3029). This device allows you to stream high-quality audio from MP3s, USBs, and SD memory cards right to your stereo. Charge your device via the USB port while enjoying your favorite songs at the same time. Both compact and lightweight, this device is easily portable for travel. Built with a user-friendly design, this device comes with an adjustable arm, providing better convenience and safety for use while driving. Plugs easily into any vehicle’s 12V power receptacle.