Description With the big size LED music spectrum design it can show the excellent effect of the sound waves simple design and easy connect it s suitable for the electronic basics enthusiast it can change the different display modes and the sensitivity adjustment it can use with the mobile phone computer MP3 MP4 and other music player device Manual Click here Feature 1 5V USB power supply and 3 5mm audio signal input 2 8cm x 20cm big size spectrum sound waves display screen 3 225 segment LED bring you the amazing music spectrum sound waves beating effect 4 One touch key control the different display modes and the sensitive it has five kinds ofdisplay modes and 4 levels sensitivity adjustment 5 With many acrylic to enclose the front and the back 6 Easy connect the USB and the audio cable that can use in the different player devices 7 Double audio channel input to collect the sounds wave that makes the effect more accurate 8 Three color optional you can choose White Blue and the Colorfil Red Green Blue version 9 Automatic gain by the different music player devices 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 changethe sensitive by short touch the key and then long touch the key again back to the display mode Package included 1 x DIY Big Size Touch Con