Wireless Keyboard/Mouse Set 9800M Multi-Mode. Full-size ultra-thin design, adjustable 1600 DPI sensor and eco-friendly rechargeable battery (keyboard). Multi-mode wireless connection Instant switch among multiple devices Ultra-slim full-size design with aluminum alloy base Adjustable 1600 DPI sensor Eco-friendly rechargeable battery (keyboard) This ultra-slim desktop set combines premium materials with an elegant design and full-size comfort. Boasting a solid aluminum alloy base, the keyboard's housing is not only robust and sturdy – it also adds a touch of style to any desk setup. 9800M is not only advanced in design but also in functionality. It features Rapoo’s multi-mode wireless connection– via reliable 2.4 GHz wireless transmission, Bluetooth 3.0, and Bluetooth 5.0 – enabling you to connect simultaneously to multiple devices and change (pair automatically) among them. The mouse in this set features a high-performance optical sensor, fully adjustable from 600 to 1600 DPI, and a comfortable shape. To top it off, the keyboard features an eco-friendly rechargeable battery so you can enjoy complete wireless freedom.Package contents of wireless keyboard, wireless mouse, Nano USB receiver, 2 AA alkaline batteries (installed), USB charging cable and quick start guide.For more information, see the downloadable pdf under the product media tab below.