Easy to set up and operate. A few hours later I got the case off but it was really frustrating, though this company was willing to help in anyway they could, which made me felt better as a customer that was not fully satisfied with the purchase at first. He’s an old school dj and very picky about sound quality, when he uses headphones of any sort. Arrived quickly and in perfect condition. Sound etc for me seemed fine, they can be quite loud and defo block out outside sound. I dont want to disassemble the product because it has a 2-year warranty. Overall am pleased with the sandal, the bottom fits comfortably. I’m not the only review that has endorsed this companyBuy from gear2compete you will not regret your purchase My three year old also helped. The XL is rated for size 13 to 14.