Razer Viper Ultimate Hyperspeed Lightweight Wireless Gaming Mouse & RGB Charging Dock: Fastest Gaming Mouse Switch - 20K DPI Optical Sensor - Chroma Lighting - 8 Programmable Buttons - 70 Hr Battery

The Lightest, Zero-Compromise Wireless Esports Gaming Mouse at 74g: The Razer Viper Ultimate includes a 20K DPI optical sensor befitting the most serious gamers without the need for drilled holes Faster Than Traditional Mechanical Switches: New Razer optical mouse switches uses light beam-based actuation, registering button presses at the speed of light Ambidextrous Design: Created for left and right-handed users with accessible, programmable buttons on both sides Maximum Speed(IPS):650,On-board Memory Profiles:5. Dock Compatible International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.