1.1624 led music spectrum colorful led display,built-in 18 kinds of spectrum display mode, you can adjust the sensitivity and brightness, with voice control function. 2.Spectrum support voice control and line control 2 wiring methods: voice control mode just connect to 5V1A can be, as long as there is sound will jump. Line control mode requires the connection of audio and USB power, will be pulsating with the music of the audio input, so as to avoid noise interference. Package includes an audio 1 to 2 adapter and 1 audio cable. 3.In the absence of audio or sound, the spectrum will automatically display the time, the clock supports 12/24-hour system ,2-way alarm clock, support night mode. 4.There are two buttons on the back of the product: button 1 and button 2, set and switch the display mode of the spectrum and the clock by long and short presses, English setting page. The product package comes with setup instructions. Support one button to to factory settings.