Dell KM555 Keyboard & Mouse - USB Type A Plunger Wireless Bluetooth/RF 5.1 2.40 GHz Keyboard - English (US) - Black - USB Type A Wireless Bluetooth/RF Mouse - Optical - 4020 dpi - Scroll Wheel - Black - Volume Down, Volume Up, Mute, Play/Pause, Forward, Back, CoPilot, Multimedia, On/Off Switch Hot K