Hi : is that a wireless mouse, isn't it. Does your PC is a desktop
or laptop : if So, here's the advisable steps to try it on
Why my mouse is not working after changing battery,.?
Reconnect the devices by pressing the reconnect button on the wireless
receiver, and on the keyboard and mouse. Failing to reconnect
wireless devices after changing the batteries is the most
common cause of wireless keyboard and mouse failures.
If nothing is working still, restart your compute
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How do I reconnect my wireless mouse, after changing the battery
There is usually a "Connect button" Somewhere on the USB receiver.
Press that and a light on the receiver, should start flashing. Then press the
connect button on keyboard or mouse. The flashing light on the USB receiver
should stop. Your receiver is now synced with the keyboard and/or mouse