This is a multi-function radio in the car, which is easy to install, convenient to operate, powerful, and has voice assistant function, making it safer to make phonecalls/navigation while driving. Features: You can locate the vehicle position, find the vehicle position through your mobilephone, and easily find your car in a large parking lot. (Before parking, it is necessary to connect the BT of the mobilephone, and the BT should be in the connection state before the car is turned off, and the disconnection of the BT after the car is turned off will not affect.) When the positive and negative poles are connected reversely, the power will be cut off automatically and the machine will not be burned. After reconnecting correctly, the machine can be started up and used normally. Seven button light cycle transformation. When connected to the mobilephone BT, one button to wakeup the voice assistant, which makes driving safer. Built-in 5.0 bt, more stable connection and faster transmission. Multimedia playback, supporting memory card/U disk/AUX playback. The disk reading does not affect the recharging. The panel is equipped with a USB recharging special interface. FM radio function, you can listen to real-time traffic, news broadcast, weather forecast, etc. Specifications: FM: 87.5-108.0MHz Output power: 4 * 45W Working voltage: 12-14.4V BT: 5.0 Install size: 178 * 50mm / 7.0 * 2.0in Panel size: 187 * 58mm / 7.4 * 2.3in Host depth: 55mm / 2.2in Audio format: MP3/WMA/WAV/FLAC Remote controller battery: 2 * AAA battery (not included) Package size: 210 * 125 * 82mm / 8.3 * 4.9 * 3.2in Package weight: 405g / 0.9lb Packing List: 1 * Car Radio 1 * Remote Controller 2 * Cable 2 * Installtion Accessory 1 * User Manual