Function: 1. Easy connect three port of the USB cable and the audio signal input, it can shows the effect when you play the music. 2. Short touch the key it can change the sound waves display mode, long touch the key enter the sensitivity adjustment and you can change the sensitive by short touch the key, and then long touch the key again back to the display mode. Description: This product adopt the big size 8cm x 20cm music spectrum design, it can show the excellent effect of the sound waves, it's best choice for the electronic basics enthusiast due to the fact that its simple design and easy connect. It can change the different display modes and the sensitivity adjustment. It has a wide compatibility with a lot of devices. Feature: 1. It is made of 3.5 mm audio signal input and 5 V USB power supply and 8 cm x 20 cm big size spectrum sound waves display screen, which can bring you the amazing music spectrum sound waves beating effect. 2. One touch key control the different display modes and the sensitive, it has five kinds of display modes and 4 levels sensitivity adjustment. 3. With many acrylic to enclose the front and the back. 4. Easy connect the USB and the audio cable as well as Automatic gain that can use in the different player devices . 5. Double audio channel input to collect the sounds wave that makes the effect more accurate. 6. Three-color optional, you can choose White, Blue and the Colorfil(Red-Green-Blue) version. Specifications: Color: White Material: ABS Item Size: Approx. 20*8*1cm Package included: 1 x DIY Big Size Touch Control 225 Segment LED Digital Equalizer Music Spectrum Sound Waves Kit Note: 1.Please allow 1-3 cm error due to manual measurement. Thanks for your understanding. 2.Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. 1、It is made of 3.5mm audio signal input and 5V USB power supply and 8cm x 20cm big size spectrum sound waves display screen, which can bring you the amazing music spectrum sound waves beating effect. 2、One touch key control the different display modes and the sensitive,it has five kinds of display modes and 4 levels sensitivity adjustment. 3、With many acrylic to enclose the front and the back. 4、Easy connect the USB and the audio cable as well as Automatic gain that can use in the different player devices . 5、Double audio channel input to collect the sounds wave that makes the effect more accurate.