Great product and very sturdy. Easy to assemble, didnt use the manual because they put it in the packaging of a small part I didnt find until it was almost complete. I turn off the headset and plug it in to charge and the headset comes on. Not comfortable to use. Its just barely a little big, but I have slender feet. CONCLUSIONSo whats my final conclusion? Like I said before, I like the sound. I could still wear the first pair after nearly 2 years, but they are starting to wear out. Sometimes the sandals cut through the skin on my feet but this time the straps didnt cut through. I?m 5?2 150 pounds I got a size M fits you like a Mermaid. Ive had them for about 10 days now and have had no battery issues with this pair.