And the more I wore it it opened up faster and fell off ! Don’t ask me about those “locks”. In my use, the mouse is always on the PowerPlay pad so I just never have to worry about charging. Excellent sound quality. The sandal is VERY lightweight-wonderful as I have lots of spine issues and a little too much weight in the shoes causes pain. the part that holds your foot down. Im beginning to think that I need to exchange them and make sure I didnt get a defective pair. This time I was (pleasantly) surprised that there was a slight sparkle to the sandal material (my original color was sold out so I went with this one). I can see myself having no problem walking 18 holes in these. However, this pair had a Dearfoam label sewn on the heel part of the slipper which was scratchy.