I never had any use for all the gizmo connections, but would be afraid to plug my phone or anything else in for fear of damage after my experience with the main terminals. One time i was just walking and heard a small drop and the case had opened on its own and the airpods fell out. Im thinking of maybe tie-dyeing it with bleach, will update if I do! They will stop working sometimes while in the gym. He will outgrow them before he wears them out - that cannot be said for all shoes. Mounting procedure is what made us by this set because we dont have to drill the holes into the door or on the wall. I couldnt. I am slender and wore them with some slack so there wouldnt be any tension on the chains and they are all ruined with in one wear. I figured since they are adjustable they would work for my wide feet. It was just as I expected it would be.