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: Seven button light cycle transformation. When connected to the mobilephone BT, one button to wakeup the voice assistant, which makes driving safer. Automatic frequency adjustment, more stable reception signal. Can be connected to two mobilephones BT at the same time, and the BT audio of the other mobilephone will be played when one mobilephone pauses playing. Multimedia playback, supporting memory card/U disk/AUX playback. With dual USB ports, it can recharge the mobilephone while reading the U-disk, without delay. Heavy low audio output, make the sound more beautiful. 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.) Specifications: FM: 87.5-108.0MHz AM: 522-1620KHz Output power: 4 * 60W Working voltage: 12-14.4V BT: 5.1 Install size: 180 * 103mm / 7.1 * 4.1in Panel size: 178 * 100mm / 7.0 * 3.9in Host depth: 55mm / 2.2in Audio format: MP3/WMA/WAV/FLAC Package size: 203 * 170 * 113mm / 8.0 * 6.7 * 4.4in Package weight: 660g / 1.5lb Packing List: 1 * Car Radio 1 * Remote Controller (battery not included) 2 * Cable 1 * User Manual