2.4G Wireless Vertical Ergonomic Optical Mouse for Work Multi-Device Connectivity 800/1200 /1600 DPI 5 Buttons for Laptop Desktop PC MacBook - Black

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 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.