Havit Rainbow Backlit Wired Gaming Keyboard Mouse Combo (White) Rainbow of LED Backlit can switch among medium light,high light,breath mode and turn off by pressing Fn and Esc simultaneously. Simultaneous operation of up to 19 keys without conflict, 8 multimedia shortcut keys, interchangeable "WASD" keys and WIN keys can be disabled for gaming. 4 colors breathing light of mouse Red, Blue, Purple, Pink; Light-off mode: forward/back button+DPI for 3 seconds Resolution up to 2400DPI, 800/1200/1600/2400DPI adjustable. Compatible with Windows 2000 / 2003 / XP / Vista / Win7 / Win8 /Win10/Mac OS