Anker 2.4G Wireless Vertical Ergonomic Optical Mouse 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. The intersection of class, comfort and functionality. A mouse for the 21st century. Comfortable and classy. Tired of using the traditional grip? Take a break from overly-clunky or uncomfortably tiny mice. The ergonomically-designed thumb rests and grips fit the contour of your palm for maximum comfort. Sleek and Sexy. Turn heads with a futuristic design. Made for increased functionality and comfort, this mouse combines a handshake grip with easy-access buttons and three levels of mouse sensitivity (800 / 1200 / 1600DPI) for improved tracking. Easy-access use. Five buttons give you improved control over your computer's systems. Whether dragging and dropping, selecting large volumes of data, or casually gaming, this mouse provides a low-cost, effective solution for multiple computing needs. Compatibility: Windows 10 / 8 / 7 / Vista / XP / 2000 Linux Mac OS X (The previous/next page thumb buttons are not recognized on the Mac OS X.) Get to know us. We created Anker with a single goal in mind: to make the smart life easier. That means starting with affordable, high-quality gear and ending with a commitment to 100% user satisfaction . After all, we're customers too. Whats in box 1 x Anker Wireless Vertical Ergonomic Mouse 1 x 2.4G USB receiver (in the bottom of the mouse) 1 x Welcome Guide 18 months friendly customer service Specs Size: 120 x 62.8 x 74.8mm Weight: 3.4oz