The V7 MW400L Left Hand 2.4Ghz Vertical Ergonomic Mouse is a wireless mouse designed for left-handed users. It offers a comfortable, vertical design to reduce wrist strain and features a soft-touch, non-slip grip for enhanced control. With adjustable DPI settings (800, 1200, and 1600), a scroll wheel, and six buttons, this mouse provides versatile functionality. It's compatible with Windows, macOS, and ChromeOS, and powered by a single AA battery.V7 LEFT HAND 2.4GHZ VERTICAL ERGONOMIC MOUSEERGONOMIC LEFT-HANDED DESIGNPromotes comfortable, upright forearm position, reducing wrist pressure and hand strain.EASY WIRELESS CONNECTION2.4GHz connection to provide a reliable, wireless link, ensuring stable performance for everyday tasks.CONCAVE THUMB RESTA concave thumb rest mouse design features an ergonomic groove that cradles the thumb, providing a more comfortable and natural grip for extended use.SOFT TOUCHThe soft-textured coating improves comfort and grip, reducing slippage and ensuring a firmer hold for an enhanced user experience.THREE LEVELS OF DPIMulti-selectable 800/1200/1600 DPI button for fine-tuning pointer sensitivity.THUMBREST DESIGNA designated spot for the thumb, improving overall precision and reducing the risk of hand fatigue.ERGONOMIC LEFT-HAND DESIGNFeel the most comfortable with the natural “handshake” position, lessen discomfort and increase productivity.WIRELESS VERTICAL ERGONOMIC MOUSESTANDARD MOUSE