CONTOUR Unimouse Left Wireless 80021788 CDUMBK11002 Product Description: Contour Unimouse - vertical mouse Device Type: Vertical mouse - ergonomic Connectivity Technology: Wireless Orientation: Left-handed Dimensions (WxDxH): 7.6 cm x 11.9 cm x 5.6 cm Buttons Qty: 7 Movement Resolution: 2800 dpi Performance: Realtime sensitivity switching 800/1000/1200/1400/1600/1800/2000/2200/2400/2800 dpi Features: 6 programmable buttons, adjustable thumb rest, scrolling wheel, adjustable tilt angle, shortcut buttons, multiple cursor speed, on/off switch, battery indicator, rechargeable battery OS Required: Apple MacOS X, Microsoft Windows Product Recycled Content: 57 % - made of recycled plastic Manufacturer Warranty: 2-year warranty