Features:* Brand new and high quality.* Bluetooth 5.0 version supports Bluetooth audio playback, voice navigation and Bluetooth hands-free calling.* Support Bluetooth/U disk, plug and play.* FM technology full-frequency FM wireless transmission can read files directly audio on Bluetooth mobile phones/disks.* Supporting power-off memory function.* Intelligent chip provides multiple protections such as over current, over charge, over temperature, over voltage, short circuit protection and anti-burning, making it safer to use.* Suitable for all vehicles with 12V-24V voltages.Connection: The FM channels of the car and the hands-free kit are tuned to the same. A 1A USB stick is inserted into the interface and a memory card is inserted on the side. Only MP3 music can be played, and this music is not displayed on the car screen.