Anker AK-UBA 2.4G Wireless Vertical Ergonomic Optical Mouse, 800 / 1200 /1600 DPI, 5 Buttons for Laptop, Desktop, PC…

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Scientific ergonomic design encourages healthy neutral “handshake” wrist and arm positions for smoother movement and less overall strain.
800 / 1200 / 1600 DPI Resolution Optical Tracking Technology provides more sensitivity than standard optical mice for smooth and precise tracking on a wide range of surfaces.
Added next/previous buttons provide convenience when webpage browsing; the superior choice for internet surfers, gamers and people who work at length at the computer.
Enters power saving mode (power is cut off completely) after 8 minutes idle, press right or left button for it to wake. Product dimensions: 120*62.8*74.8 mm; product weight: 3.4 oz.
Package includes: 1 Anker Wireless Vertical Ergonomic Optical Mouse (2 AAA batteries not included), 1 2.4G USB receiver (in the bottom of the mouse), 1 instruction manual. 18-month hassle-free warranty.