Razer Viper Ultimate Lightweight Wireless Gaming Mouse & RGB Charging Dock: Hyperspeed Wireless Technology – 20K DPI Optical Sensor – 74g Lightweight – 70 Hr Battery – Mercury White

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
Optical Mouse Switch: 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
Up to 70 Hours of Battery Life: Allowing non-stop gaming