Dell Wireless Keyboard and Mouse - KM3322W

General Device Type Keyboard and mouse set Interface 2.4 GHz Wireless Receiver USB wireless receiver Dimensions (WxDxH) / Weight Keyboard: 17.5 in x 4.8 in x 1 in / 17.5 oz Mouse: 2.3 in x 4.1 in x 1.5 in / 2 oz Input Device Type Keyboard - wireless Hot Keys Function Mute, volume -, volume + Keyboar