With a split & sloped keyboard with adjustable reverse tilt built-in wrist support and neutral grip the ergonomist-approved Pro Fit Ergo Wireless Keyboard and Mouse positions your hands for improved comfort. Features include dual wireless (2.4GHz and Bluetooth 4.0 LE) with 128-bit AES encryption quiet typing and clicking spill-proof keys F-keys for shortcuts caps lock numbers lock and scroll lock low battery indicator lights a five-button (including forward and back) mouse three-mode power-saving switches and a replaceable receiver*. * In the event the receiver is lost or damaged simply purchase a new one pair it with your mouse and youre ready. Ergonomist-approved design Positions your hand for improved comfort. Split and sloped keyboard with adjustable reverse tilt Positions hands wrists and forearms for comfort and neutral alignment. Built-in wrist support Supports cushions and cradles the wrists. Dual wireless with 128-bit AES encryption The flexibility of 2.4 GHz and Bluetooth 4.0 LE with government-grade encryption. Quiet clicking For smooth easy non-disruptive operation. Spill-proof keys Make clean-up fast and easy. Replaceable receiver If your receiver is ever lost or damaged simply purchase a new one pair it with your mouse and youre ready. Five mouse buttons (including forward and back) Enhance navigation and productivity. Three-mode power-saving switch Allows you to toggle between 2.4GHz Bluetooth and Off for best battery life. Caps lock numbers lock scroll lock and F-keys Popular features that make typing and navigating easier and more efficient.