This advanced ultra-slim combo set combines premium materials with a stylish design and comfort. Made from brushed stainless steel and an aluminum alloy, the keyboard's housing is not only robust and sturdy - it also adds a touch of style to any desktop. 9500M 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 or Bluetooth 4.0 (Smart) - enabling you to connect simultaneously to multiple devices and change (pair automatically) among them. The mouse in this set also features a fully adjustable high-performance optical sensor from 600 to 1600 DPI. To top it off, Rapoo’s energy-saving technologies offer a battery life of up to 12 months, minimizing the need for replacing batteries. Specification • Multi-mode wireless connection: connect via Bluetooth 3.0, 4.0 and 2.4 GHz • Up to 10 m range & 360° coverage • Connect simultaneously to multiple devices • Instantly switch among connected devices in one click (Automatic pairing) • Ultra-slim 4.5 mm design • Aluminum alloy base • Adjustable 1600 DPI tracking engine • Fn multimedia hotkeys • Chiclet keys and scissor key structure • Nano USB receiver • Up to 12 months battery life