Features:Wireless Bluetooth-compatible connection: It can wirelessly connect smartphones, tablet computers and other devices through Bluetooth-compatible technology to achieve convenient music playback and hands-free calls.Lossless sound quality: The transmission reaches lossless level, the response is quickly, and the low-power connection is more childish, making the sound quality closer to lossless.LED digital display: intelligent digital display, real-time monitoring. The voltage value is displayed in real time, making driving safer.Charging function: It has a mobile phone charging function, which can charge mobile phones or other devices during the trip to solve the problem of insufficient power.Simple Operation: Intuitive button or touch controls make switching music, adjusting volume and setting playback mode quick and easy.Notice:1.Actual color may be slightly different from the image due to different light effect2.Please allow 1-3cm deviation due to manual measurementDescription:Rated working voltage: 12V~24VUSB1 output: 5V/1AFrequency response: 20Hz-20KhzBluetooth-compatible transmission distance: less than 10MBluetooth-compatible microphone effective distance: 0.5-2M