Bluetooth FM Transmitter.Broaden your entertainment experience while you travel with Naxa's Wireless FM Transmitter with Builtin MP3 Player (NA3033). This device allows you to stream highquality 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 userfriendly design, this device comes with an adjustable arm, providing better convenience and safety for use while driving. Plugs easily into any vehicles 12V power receptacle. Builtin Bluetooth 4.2 functionality allows you to easily stream all your favorite music from external devices. Handsfree functionality for added convenience and safety while driving. Easytoread digital LED screen. Builtin wireless FM transmitter is capable of getting 206 channels on a frequency from 87.5 108MHz. USB port, Micro SD card slot, and Auxin port allow for an easy manual connection to media devices. Fully adjustable arms offers multiple viewing angles.Wireless fullfunction remote control.Universally compatible in vehicle cigarette lighter receptacles (DC 12 24V).