Lossless music: support WAV, MP3, WMA format music, clear and noise-free. Hands-free: wireless connection eliminates the trouble of plugging in, and can be used for hands-free calls, voice navigation, and Bluetooth music playback. 【Power off memory】Memorize frequency/track/restart after power off, start playing from broken song. Installation tips, the red wire is connected to the ACC ignition wire of the car, the yellow wire is connected to the positive pole of the battery, and the black cable is connected to the negative pole (ground wire) of the battery. Multiple playback: BT playback, U disk playback, TF card playback, AUX audio playback to easily choose the playback method. FM radio: You can listen to real-time road conditions, new broadcasts, weather forecasts, etc., making boring driving less monotonous.