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