“Bought a Hypersphere last year that was great, but there are big issues with the USB charger and now I have a very expensive, useless round thing.This is just as good for my foot and piriformis issues and the charger is in a normal place and is a normal charger. Only issue as others have said is that sometimes you can shut it off by mistake. Cost wise, this is perfect too”
“I use these whenever I've been exercising or walking and tend to get leg cramps. It is durable, lasts long on a charge and has multiple speeds and interest for whatever purpose.”
