Description: With the big size LED music spectrum design, it can show the excellent effect of the sound fluctuation. This spectrum uses general USB interface, DC 5V power supply. All USB interface equipments, including computers, mobile phone charger, mobile power supply, etc., can provide power to the LED spectrum. Great DIY audio spectrum gives you an unprecedented listening enjoyment! Features: Great DIY kit for electronic enthusiasts in electronic applications. 5V USB power supply and 3.5mm audio signal input. 8.5cm x 23cm big size spectrum sound fluctuation display screen. 384 pcs LEDs bring you the amazing music spectrum sound fluctuation beating effect. With clock function, can be used a clock, can display date, time and week. Specifications: Power Supply: 5V USB Audio Signal Input: 3.5mm / 0.14in Board Size: 8.5 x 23cm / 3.3 x 9.1inch Material: Acrylic Package Weight: 300g Package List: 1 x DIY LED Digital Music Spectrum Set Kit with Shell and Some Screws 1 x 2-in-1 Audio + USB Cable Note: Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. 1、Great DIY kit for electronic enthusiasts in electronic applications. 2、5V USB power supply and 3.5mm audio signal input. 3、8.5cm x 23cm big size spectrum sound fluctuation display screen. 4、384 pcs LEDs bring you the amazing music spectrum sound fluctuation beating effect. 5、With clock function, can be used a clock, can display date, time and week.