ROAV SmartCharge F2 Bluetooth FM Transmitter Wireless Audio Adapter The Anker ROAV SmartCharge F2 Bluetooth FM Transmitter is a compact device that plugs into a car's cigarette lighter/power outlet, allowing you to stream music and make hands-free calls through your vehicle's stereo system. It acts as a wireless audio adapter for cars without built-in Bluetooth connectivity Bluetooth Connectivity: Utilizes Bluetooth 4.2 to stream audio from your phone to your car stereo via an FM frequency. It supports hands-free calling with a strong, stable connection. Dual USB Charging Ports: Equipped with two USB ports for simultaneous high-speed charging of devices. One port features Anker's PowerIQ technology for intelligent device identification and optimized charging speed. The top port can also be used to play music stored on a USB drive Unused open box, complete Box is a little rough, may not make a good gift?