Razer DeathAdder V2 Pro @ TechPowerUp
 

At long last, the classic DeathAdder has been given the wireless treatment as well. With a battery life of up to 120 hours in Bluetooth and up to 70 hours in 2.4 GHz mode, Razer's Focus+ sensor, optical main button switches, and an 87 g lightweight construction, the V2 Pro promises to be a successful continuation of the DeathAdder series.

https://www.techpowerup.com/review/r...hadder-v2-pro/