EVGA X20 @ TechPowerUp
 

After the wired X17, EVGA presents the wireless X20 gaming mouse. Much like the X17, it has a right-handed ergonomic design featuring plenty of buttons, two additional lift-off distance sensors, and furthermore features PixArt's PAW3335 sensor, along with Bluetooth connectivity and more than 60 hours of battery life in 2.4 GHz mode.

https://www.techpowerup.com/review/evga-x20/