Genius KM8200 Wireless Multimedia Keyboard/Mouse Combo (GEN-KM8200) - RF Frequency: 2.4 GHz, Keycap type: Chocolate, Genius Key support: Yes, Mouse Resolution (DPI): 1000, Mouse Sensor engine: Optical, Number of buttons: 3, Compatible OS: Windows 7, 8, 8.1, 10, Mac OS X 10.8 or later, Color: Black