The Adesso Wireless Ergonomic Keyboard & Mouse offers users two advanced input devices with ergonomic design, multifunctional features & a wireless range of up to 30 feet. The design of this keyboard with split key zones & gently sloped shape encourages natural position of hands, wrists, & forearm in maximum comfort for long use. The included wireless laser optical mouse not only provides a comfortable ergonomic design but also includes a DPI switch for changing resolution from 800 DPI to 1200 DPI & 1600 DPI for better navigation on larger screen styles. Also includes browser forward & back browser buttons for improved navigation. Quiet membrane key switches provide a better tactile response & a quieter typing experience lasting up to five million key strokes. Maximum Wireless Range: 33 ft; Connector / Port / Interface: USB; Wired / Wireless: Wireless; Operating System Compatibility: Mac; Windows Vista, 7, 8, 10.