Corsair Katar Elite Wireless @ TechPowerUp
 

The ambidextrous Katar Elite Wireless is the premium version of Corsair's earlier Katar Pro Wireless. Coming with the custom Marksman 26,000 CPI sensor, Omron main button switches, and a 68 g lightweight construction, the Katar Elite Wireless is capable of both 2.4 GHz and Bluetooth operation, promising up to 110 hours of battery life.

https://www.techpowerup.com/review/c...lite-wireless/