Razer's Viper mouse uses optical switches to get that perfect headshot
 

No matter how great a gaming mouse is, there's always going to be some sort delay from when you click a button, to when your computer registers it. Razer is hoping to shave that delay a bit with its latest mouse, the Viper ($80), which uses optical s...

https://www.engadget.com/2019/08/01/...-gaming-mouse/