The Razer Viper V4 Pro is built for fast, competitive gaming. The Focus Pro Optical Sensor keeps tracking spot-on, so every flick and swipe feels accurate. Its HyperSpeed Wireless dongle with 8000 Hz polling cuts out any latency that could ruin your reaction time. And the 4th Gen optical switches give you consistent, satisfying clicks every time. Good to know - At just 49 g, it's ultra-light and effortless to move - Up to 180 hours of battery life means you won't be reaching for a cable mid-game - Its six programmable buttons can be customised using Razer Synapse software