✔【THE MOST COMFORTABLE HAND-FEELING.】 Slightly wider size and symmetric design make this mouse suit both of your hands, easier to control. The special grooves on left and right buttons help relieve fingers fatigue. Contoured shape and sweat-resistant surface provide extra comfort. ✔【ADVANCED 2.4G WIRELESS CONNECTION.】 Deliver a powerful, reliable 2.4Ghz wireless connection with high anti-interference performance. The effective transmission distance is up to 32.8ft/10m. A mini USB receiver(stored in the battery slot) supports plug and play, no extra driver needed. ✔【3 ADJUSTABLE DPI LEVELS.】 800,1200,1600, easily switch the cursor sensitivity depending on your activity to meet different using demands. High precision optical mouse for quick tracking and precise movement allows easy operation on cloth, paper and tabletop.