M800 Ultra Lightweight 55g PAW3395 Wireless Bluetooth Tri-Mode Gaming Mouse New
Opticial Sensor : PAW3395. PAW3395 Sensor. 4K Dongle Pairing : 1. Turn into 2.4G mode, unplug the dongle. Press and hold the bottom DPI button until the green light blinks rapidly. Plug the 4K Dongle with the braied cable.