Meet the gaming Mouse that's powered by an ultra-fast wireless technology engineered for pro-grade performance. Featuring 20, 000 DPI resolution for extremely precise tracking, optical mouse switches that actuate at the speed of light, and up to 70 continuous hours of play. The #1 Best-Selling Gaming Peripherals Manufacturer in the US: Source - The NPD Group, Inc. U.S. Retail Tracking Service, Keyboards, Mice, PC Headset/Pc Microphone, Gaming Designed, based on dollar sales, Jan. 2017- Dec. 2019 25% Quicker Than Competing Wireless Mice: Razer HyperSpeed wireless technology brings together extreme low-latency and interference reduction for true wireless freedom 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.1.8 m / 6 ft Speedflex cable for charging and wired use Ambidextrous Design: Created for left and right-handed users with accessible, programmable buttons on both sides Included Customizable Chroma RGB Mouse Charging Dock: Features 16.8 million color combinations w/ included preset profiles, providing 5 hours of wireless playtime within 10 minutes of charging 8 Programmable Buttons: Allows for reconfiguration and assignment of complex macro functions through Razer Synapse 3