I did not have to disassemble them to fit my roof rails on my 18 RAV4 like the other reviewer mentioned. It is quite sturdy yet lightweight. I guess this means that charging while playing music is not recommended. Divoom have also succesfully built up a very extensive and active user base, so there is an endless veriety of artwork from thousands of users to upload and display on your device, both beginner and pro. It?s just a little snug, I wish there was proper sizing. - The battery life is good for what I need. I wore them to a singing gig this past Thursday, where I stood and danced a bit while singing and playing. I absolutely love this Sleep mask! Problem persisted with the new aux cord and on a different device. None of that plastic creaking sound I used to get out of both turtle beach sets, which was a big factor.