1. 3 digital display modes: time display, level display, off display 2. USB power supply, sound control jumping, adjustable sensitivity 3. Adjustable brightness, with the option to set a slightly brighter display at night 4. 6 jumping effects, 9 color effects 5. Control mode: Sound sensing, button setting function Supply voltage: USB-5V Digital tube: 0.28 inch 4-digit display Display LED beads: 36 3528 full-color LED beads Note:A CR1220 button battery is required (not included in the shipment) Note: Installation guide not included, we strongly recommend you professional installation. Please check as much as possible to make sure the item is what you need. Tips: The product may be updated constantly ,Due To Different Batches, The Actual Product May Have Slight Differences Or Color Differences, Which Does Not Affect Use It's DIY kits, needs to by yourself. Colour:Photo Color Material:plastic Package Contents: 1 x LED Sound Control Spectrum Module Only 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.