Instructions: MODE/SPEED key: Short press to turn white-select mode; long press to turn red-select 5 speedsCOLOR/BRIGHT key: Short press to turn white-select color; long press to turn green-select 4 levels of brightnessPress two keys at the same time: Press at the same time to turn blue-to learn the environmental noise spectrumPress and hold COLOR at the same time when power on: enter gain setting modePower on (battery model only): Press the COLOR key after power off; Shut down (battery model only): keep face down for 3 secondsProduct Description: Built-in highly sensitive microphone (voice control)colorful lamp beads18 color modes adjustableComes with automatic gain controlExclusive intelligent de-noising algorithm, can be used in noisy environmentInput voltage: Greater thanDC 5V 1AInput interface: Type-C USBFrequency response: 100-16KHZOptical characteristics (wavelength): Red: 620-625nmGreen: 520-525nmBlue: 460-470nmOptical characteristics (brightness): Red: 450-550mcdGreen: 1300-1500mcdBlue: 350-400mcdsize: 250 x 25 x 22mmMaterial: Acryliccolour: As shownPackage Contents: 1 x led Light1 x USB Cable1 x Lamp BaseOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.