Oyster Mouse Wireless ergonomic vertical mouseBNEOYMW The Oyster Mouse is an ergonomic mouse with 5 repositionable mouse angles. Features:Ergonomic: eliminates arm twisting by keeping the forearm in a neutral position Choose your angle: mouse angle is repositionable in 5 settings (both left and right-handed) Universal design: suitable for left and right hands Buttons: 5 buttons and separate scroll wheel Accurate: resolution 1200 dpi Wireless connection Specifications:Number of buttons: 5 Resolution (cursor speed): 1200 dpi Plug & play: Yes Cable length: - Rechargeable: Yes Operating system: WinXP, Vista, Win7, Win8, OS X < Width: 90 mm Height: 53 mm Depth: 100 mm Weight: 150 gr Type: Vertical Hand: Lefthanded, Righthanded, Both Connection: Wireless