Microsoft Sculpt Ergonomic Keyboard for Business Wireless.

Split keyset design helps to position wrists and forearms in a natural, relaxed position.Wireless Type : ‎2.4 GHz Radio Frequency.NOT COMPATIBLE : iOS 7, iOS 6.Hard Drivespace : 150 MB Hard Drive. Cushioned palm rest provides support and promotes a neutral wrist position Domed keyboard design positions wrists at a natural, relaxed angle Separate number pad provides greater flexibility for workspace setup Natural arc key layout mimics the curved shape of the finger tips Split keyset design helps to position wrists and forearms in a natural, relaxed position Cushioned palm rest provides support and promotes a neutral wrist position Domed keyboard design positions wrists at a natural, relaxed angle Separate number pad provides greater flexibility for workspace setup