From the manufacturer
GAME FOR HOURS WITH ULTIMATE PALM GRIP COMFORT
Never lose a gaming session because of hand strain again. The Lenovo™ Legion M500 RGB Gaming Mouse sports a performance-first design engineered around the latest in ergonomics, giving your hand the best possible comfort by optimizing the palm grip: the most natural position. Dominate the latest titles with 16,000 DPI precision and adjustable on-the-fly DPI switch.