Razer Viper Ultimate @ TechPowerUp
 

Razer's most recent addition to the market of lightweight mice, the Viper, is now available wireless as well. The Viper Ultimate combines the all-new Focus+ sensor, improved wireless tech, and a highly competitive weight of just 74g to compete with Logitech's current wireless flagship, the G Pro Wireless.

https://www.techpowerup.com/review/r...per-ultimate//