Dell KM5221W Pro Wireless US Keyboard + Mouse Black

Dell KM5221W Pro Wireless US Keyboard + Mouse Black General Device Type Keyboard and mouse set Interface 2.4 GHz Wireless Receiver USB wireless receiver Dimensions (WxDxH) / Weight Keyboard: 17 in x 4.8 in x 1.3 in / 14.1 oz Mouse: 2.4 in x 4.5 in x 1.5 in / 2.3 oz Input Device Type Keyboard - wireless Hot Keys Function 12 programmable keys of F1-F12 Localization and Layout US English Keyboard Technology Plunger Pointing Device Type Mouse - wireless Buttons Qty 3 (1 programmable) Movement Detection Technology Optical Movement Resolution Adjustable DPI. 1000, 1600(default), 2400, 4000 Batteries: 1 Supported Battery Type AA x 1 Miscellaneous Color Black Included Accessories AA battery, 2 AAA batteries Compliant Standards AES-128 encryption for the Keyboard Software & System Requirements Included Software Dell Peripheral Manager (Windows only) OS Required Apple MacOS, Android, Google Chrome OS, Microsoft Windows 7, Windows 8.1 , Windows 10, Windows 11 Red Hat Enterprise Linux 8.0, Ubuntu 18.04 Battery Type Keyboard AAA Type Mouse AA Type Installed Qty 2