Expand your stereo system setup with the American Audio MKII DB Sound Volume Display Device. This device allows you to monitor your decibels with a bit of flare. The system goes from green to amber to red as it takes your sound volume, so you can check your decibel levels by watching the colors change. And if you want to change the look of your monitor, you just need to switch it from bar to dot mode! Entertain your friends, family, and fans with the American Audio MKII DB Sound Volume Display Device