cliff6
Hello;
Allow me to welcome you to the HP forums!
I read your post about your HP wireless mouse questions and wanted to help.
As to the first, yes, that is simply a place to store the WiFi dongle when the mouse is not in juse.
As to the second, that's showing the location of an LED on the mouse which lights solid initially, and (I believe) blinks with the battery is low.
Good Luck
I am a volunteer and I do not work for, nor do I represent, HP.
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I am a volunteer and I do not work for, nor represent, HP