20 minutes to both clean and dry. Just wondering when Amazon is going to crack down on these merchants selling counterfeit products. I prefer the accompanying music app to the resident iphone music app. I could forgive it all, until Logitech retired the (wired) Trackman, in favor of the (wireless) M570. It has to be the right one because its the only one the works independent of the pair. It has a fairly hard shell and a snug fit, removable with a cloth ribbon, so protects the original case well, but is its downfall. He wanted his guy to sit down and the leg came off. Literally one day. My daughter wears a little kid size 11. hard.