Adjustable DPI for Precision Control: This mouse features optical tracking technology with four adjustable DPI levels (800, 1200, 1600, and 2400), easily set via the DPI button. Enjoy precise movement tailored to your specific needs. Enhanced Comfort: Ergonomic mice feature a rounded design for a comfortable grip, with shortcut buttons to minimize movement. They promote better posture, helping to reduce back pain and the risk of musculoskeletal disorders. Efficient Power: Powered by a single AA battery(not included), ensuring long-lasting performance for uninterrupted usage. Essential Support: This mouse provides essential support for your thumb and little finger, preventing them from slipping and enhancing your grip for improved control and comfort.