It can be compatible with for XP 7 8 10 or for OS X, etc. Item Type: Wireless Keyboard and Mouse. Keyboard Battery Specification: 1x AA Battery (not Included). 1 x Keyboard. ERGONOMIC DESIGN: Combined with the characteristics of hand planing, sitting physiology and visual display and other ergonomic design principles, it adopts a 6 degree clamping angle design.
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