RAPOO 9500M Bluetooth & 2.4G Wireless Multi-mode Keyboard Mouse Combo Black - 1600DPI 4.5mm Ultra-Slim 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. Reliable multi-mode wireless connection:Bluetooth 3.0, 4.0 and 2.4 GHz Connect to multiple devices Switch among connected devices in one click Keyboard with aluminum alloy base Ultra-slim 4.5 mm keyboard design Multimedia hotkeys Adjustable 1600 DPI optical mouse Up to 12 months of battery life