This is a charging module from Logicool (Logitech) that enables Qi wireless charging for their gaming mice. It is compatible with POWER PLAY-supported mice such as the G502 X PLUS, PRO X SUPERLIGHT 2, G502 LIGHTSPEED, and G703. It's convenient because you no longer need to plug and unplug cables. Since it enables Qi charging, it will not charge via Power Play. A Qi wireless charger is required separately. To prevent overcharging, the battery level will be maintained at approximately 70-85%. It has been opened once for operational testing.