Microsoft 5050 Ergonomic Wireless English Keyboard & Mouse, Black

Highlights: Ergonomist Approved Comfort Curve Design; Designed to fit your right or left hand. Advanced Encryption Standard (AES) 128 Bit Encryption. Built in palm rest helps support and straighten wrists and 4 AA alkaline battery Wireless for increased freedom. System requirement is windows 10 / 8 / 7 and mac os x v10.4 - 10.7. Customizable shortcut keys to easily access your favourite programs. Works on virtually any surface with BlueTrack Technology. Ambidextrous design is suitable for use with either hand. Refer user guide below.