(1)Purgatory Viper Standard Edition is strictly based on ergonomic design, easy to support palm and finger joints, providing a comfortable grip. The non-slip side skirts effectively increase the friction on the side of the mouse, reducing sweaty hands and slippery conditions. (2)Gaming-grade optical sensor, can quickly track and respond to hand movement data, allowing you to quickly strike in the fierce battle, locking the game, showing the precise operation of the gaming player. (3)1000Hz return rate, response time is only 0.001 seconds. The 1000Hz return rate and response time is only 0.001 seconds, which ensures smooth movement in the game and avoids the pointer drifting and lagging, which effectively improves the accuracy (4)Specifications size: 61.7mm*43mm*127mm weight: 96 grams DPI: 6400DPI Lighting: Monochrome light, can be turned off or set to constant light/breathing mode Buttons:5 programmable buttons, including side buttons Cable: Approx. 1.8 meter rubberized cable