Change batteries in a targus portable mouse

I found the user guide in French. It says to slide back the cover behind the Logo on top.
also found it in English:

Installing the Batteries
Optical Mouse
1 Remove the battery cover from the top of the mouse by
pressing the top center (over the Targus logo) and
sliding it back.
2 Insert the supplied batteries , making sure that the
positive (+) and negative (-) ends of each battery match
the polarity indicators inside the battery housing.
WARNINGS: When replacing the batteries, you may use
alkaline or other heavy-duty NiMH batteries. Never
combine an alkaline with a NiMH battery in a device.
Avoid mixing new and used batteries in a device.
3 Slide the battery cover back in to position until it “clicks”
firmly into place.
4 Turn on the mouse by sliding the on/off switch on the
bottom of the mouse to the “on” position.
The optical sensor, located on the bottom of the mouse,
glows red.

If I could be of further assistance, let me know. If this helps or solves the issue, please rate it.
Thanks, Joe


I’m happy to assist further over the phone at https://www.6ya.com/expert/joe_8b8c2cd6ce148309