Feature: 1. Scientific ergonomic design makes wrist healthy and arm positions for smoother movement and less overall strain. 2. 1000 / 1600 / 2400 movement speed Resolution Optical Tracking Technology provides more sensitivity than standard optical mice for smooth and precise tracking on a wide range of surfaces. 3. Added forward/back buttons provide convenience browsing function. 4. The superior choice for internet surfers, gamer and people who work at length at the computer. 5. Comfortable texture, exquisite surface treatment, the feeling of being as smooth as the skin. 6. Unique design: Scientific ergonomic design makes wrist healthy and arm positions for smoother movement and less overall strain. 7. More sensitive: 1000 / 1600 / 2400 movement speed Resolution Optical Tracking Technology provides more sensitivity than standard optical mice for smooth and precise tracking on a wide range of surfaces. 8. More sturdy: Added forward/back buttons provide convenience browsing function. 9. Designed for internet surfers, gamer and people who work at length at the computer. 10. More durable: omfortable texture, exquisite surface treatment, the feeling of being as smooth as the skin. Specification: Description: High-end smart gaming mouse, a premium gaming mouse designed for gamers , programmer, office working and so on. Features: Scientific ergonomic design makes wrist healthy and arm positions for smoother movement and less overall strain. 1000 / 1600 / 2400 DPI Resolution Optical Tracking Technology provides more sensitivity than standard optical mice for smooth and precise tracking on a wide range of surfaces. Added forward/back buttons provide convenience browsing function. The superior choice for internet surfers, gamer and people who work at length at the computer. Comfortable texture, exquisite surface treatment, the feeling of being as smooth as the skin. Specification: IBM or compatible computer Windows：2000/ME/XP（x64）/Vista/7/8 Mac OS X（over V10.4） An available USB port Tracking System: optical Effective distance: 10m Button number：6 buttons Resolution: 1000-1600-2400DPI Working voltage/current: 3V/4mA Product weight: Approx. 135g Package weight: Approx.170g Product dimensions: Approx. 110*72*75mm /4.3*3*3in Package size: APPROX.120 * 90 * 75 mm /4.7*3.5*3in Package Content： 1 * Mouse 1 * Receiver 1 * Instructions in 10 languages (English, German, Russian, Spanish, French, Italian, Japanese, Korean, Arabic, Chinese） Package List: 1 * Mouse 1 * Receiver 1 * Instructions in 10 languages (English, German, Russian, Spanish, French, Italian, Japanese, Korean, Arabic, Chinese）