Vertical design, no wrist fatigue - Say goodbye to the traditional mouse's “slumped” position! This ergonomic vertical mouse naturally fits the palm like a hand grip, allowing the arm and wrist to maintain a relaxed state, long time office, game is not sore and not tired 2.4G wireless speed response, one-key switch DPI - Stable as wired, free without delay! The wireless mouse has 2.4G technology with 3 DPI adjustment (800/1200/1600), whether it's efficient office or intense game, only click, the speed of switching at will Optimized for Small to Medium Hands - The wireless mouse for laptop has 6 Silent Button keys layout (forward/backward /DPI) switch fit medium and small hand, comfortable grip without fatigue Noise canceling - Left click? Right click? All “silent mode”! With no noise mice, you can say goodbye to the “mouse symphony” when working late at night or presenting at a meeting Intelligent hibernation & lightweight mice- Intelligent sleep mode automatically sleeps when idle. Lightweight and compact mouse, easy to stuff into your bag, convenient for traveling and working Note: The product includes batteries wrapped in plastic film—remove before use