25 percentage Quicker Than Competing Wireless Mice: Razer HyperSpeed wireless technology brings together extreme low-latency and interference reduction for true wireless freedomThe 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 holesFaster Than Traditional Mechanical Switches: New Razer optical mouse switches uses light beam-based actuation, registering button presses at the speed of lightAmbuyextrous Design: Created for left and right-handed users with accessible, programmable buttons on both sides8 Programmable Buttons: Allows for reconfiguration and assignment of complex macro functions through Razer Synapse 3. Max Speed (IPS)-650 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.