Features:<br><br> 1. 60 segment and dual-channel design<br> 2. Input voltage: DC 5V， audio dual-channel input<br> 3. Has 7 kinds of classic display mode， you can set the mode by key<br> 4. 6-level gain setting， long press the key for 3s to set<br> 5. 10-level speed adjustment， long press the key for 1s to set<br> 6. All adjustments with power-off memory<br> 7. Size: 40*196*19.5mm<br><br> Key Operation:<br><br> Short press: mode adjustment;<br> Long press for 1 second: 10-level speed adjustment， the left top LEDs will correspond to light on， the more LEDs light on， the slower;<br> Long press for 3 seconds: 6-level gain adjustment， the right top LEDs will correspond to light on.<br><br> Instructions:<br><br> 1. The monitor uses power and audio two-in-one input cable， USB terminal to supply power， the 3.5mm headphone plug is audio input， please use the attached audio branch to connect audio and AS60 to be your signal source.<br> 2. Powered by USB DC 5V; AS60 will jump in disorder if your phone charger has large ripple， in this case please use computer USB terminal to supply power and test; it is normal that the display has slightly jump if the input doesn't connect headphones.<br> 3. Please control the input level within 5V， too high will damage the chip; please use potentiometer to attenuate signal if you need to connect speaker directly.<br><br> Note:<br><br> Please do not use counterfeit phone chargers or unstable power supply or others which has large ripple， or it will cause background noise or cause damage to the product.<br><br> Package Includes:<br><br> 1 x A60 Music Spectrum VU Meter<br> 1 x Audio Cable<br> 1 x 3.5mm Male to Female Plug<br>