Dual Channel AS30 Binaural 30 Segment LED DIY Kit Music Spectrum VU Meter<br><br>Product Size:<br>Without housing: 2.5 x 12 x 1.3cm (L x W x H)With housing: 3.1 x 12.6 x 1.9cm (L x W x H)LED projection display section dimensions: 7.6 x 2.0cm (H x W)Input voltage: DC 5V dual-channel audio input<br>AS30 there are six kinds of classic display mode， key settings， settings with memory function.<br>Mode 1: Columnar ModeMode 2: Columnar with floating point modeMode 3: Columnar with floating point， floating point up out of the modeMode 4: Single point modeMode 5: Single point with floating point up out of the modeMode 6: single floating point mode<br>Instructions:<br>1， Connect the USB cable into the computer USB port and 3.5mm headphone2， Please adjust the input volume， gain adjustment will be displayed with the amplitude control to the appropriate range， the gain in addition to special under special circumstances of small volume， set to 1 level is the best;<br>Software upgrade instructions: (New version will be sent from 2015-11-01)<br>AS30 software upgrade V2 version， upgrade content:1， an increase of 10 level speed adjustment function， you can adjust according to their own preferences to the speed of their own， it can be suitable for all kinds of music.(3 level) in the video.2， 3 increase in the level of gain adjustment， high school three.<br>Key use method:(Adjust to bring out the memory of the memoryClick: mode adjustmentLong by 1 second: 10 speed adjustment， the left top of the LED will correspond to show that the more 1-10 the more slowlyLong press 3 seconds: 3 gain adjustment， the right side of the top LED will correspond to display， 1， 2， 3， respectively， on behalf of low， medium and high gain<br>Instruction: Click to open<br>Package included:<br>1  x Music Spectrum VU Meter Kit