Features: BT5.0 wireless transmission, low power consumption, stable sound quality. For receiving calls, music, broadcasting mobile phone navigation Support plug-in card and radio, intelligent wireless connection, losslessed music playback Support 3.5 input interfaces, car MP3 player function. Multiple function interfaces, easy to carry. Fast speed charging, a variety of music playback, intelligent connection to mobile phones, high-quality sound effect Specifications: Support：BT5.0 Wireless Transmission Size:about 185x110x58mm/7.28x4.33x2.28in Receiving frequency: FM87.5~108MHz Output power: 45Wx4 Operating Voltages: 12~14.4V Operating Temperature: -10~60°C Screen: LED display Type: HD1785 / HD1789 Package Includes: 1PC Music Player note: Due to problem of lighting,there might be tolerances in product, please understand. Please allow 0-1cm error due to the measurement