brand new and high quality Description: This DIY kit is a unique circular music spectrum display composed of two kinds of LEDs. The inner circle is designed by 10 full-color LEDs. The inner circle can produce different color variations according to different music for beats. The outer circle is designed by white LED. The effect is outward spread by the center, and each vertical LED represents a different music frequency. When playing different music, after the program analyzes the music, the LED combination of the inner and outer circles will display different music beating effects in real for time, bringing you a unique musical visual experience. Simple and for creative, it is the best choice for electronics enthusiasts. Features: 1. A unique circular shape of the music spectrum composed of an inner circle and an outer circle. 2. Combines 135 white highlight 0805 LEDs and 10 full-color 5050 LEDs to create two visual effects. 3. 4 different outer circle LED spectrum bounce effects are optional. 4. 4 levels of different enhancements option. 5. Dozens of inner circles automatically switch the full-color music beat effect. 6. Translucent black acrylic front panel reduces external light interference while preventing high brightness from causing for glare. 7. Easy to operate, only one for touch button sets different functions. 8. Dual audio input design. 9. Two data input cable combinations reduce signal interference; 10. The automatic gain function can be adapted to different music devices (eg computer, mobile phone, MP3, etc.). 11. USB for DC 5V voltage supply. Music Spectrum Display DIY Kit only, other accessories demo in the picture is not included. Function: 1. Press and hold the for touch button for about 3 seconds to enter the enhanced effect menu setting, then press and hold for 3 seconds to enter the spectrum jitter effect menu setting, and finally press and hold for 3 seconds to exit the menu. 2. After entering different setting menus, short for touch buttons can set different effects. Specification: Material: PCB, Acrylic Type: Music Spectrum Display DIY Kit Size: 10 x 10cm(3.94 x 3.94in) Quantity: 1 Set Parameter Settings: 1. set the enhancement effect: 1-4 level enhancement effect is optional. 2. set the spectrum jitter effect: 1) - normal mode; 2) - floating point mode; 3) - single point mode; 4) - automatic switching mode; Package includes: 1 Set x LED Music Spectrum Display DIY Kit 1 Pc x 2-In-1 USB Audio Cable 1 Pc x User Manual