perixx PERIBOARD-522 Wired Compact Mechanical Trackball Backlit Keyboard User Manual
perixx PERIBOARD-522 Wired Compact Mechanical Trackball Backlit Keyboard Product Specifications Model: PERIBOARD-322 Backlit Levels: OFF-25%-50%-100% Brightness Control: Increase/Decrease Dynamic Backlit Feature Product Usage Instructions Backlit Control: To control the backlit…