Razer put the Viper V3 Pro on a diet and got its weight down to a ridiculous 54 g. Combine that with the Focus Pro 35K Optical Sensor Gen-2 and you'll have absolute control. It really lets your reflexes shine. And Razer's 8000 Hz HyperSpeed Wireless technology cuts out any latency that could ruin your reaction time. Good to know - Its 3rd Gen optical switches give you consistent, satisfying clicks every time - The programmable buttons with onboard memory let you save your favourite settings - Up to 95 hours of battery life keeps you in the fight longer