Selling my Bose Quiet Comfort 35 Noise Cancelling headphones.
The only issue is with the power switch slightly losing spring tension, causing it to sometimes spring back and turn the power on after being switched off, which can cause the battery to drain if not noticed.
I have fixed this issue before by cleaning the internals which lasted a couple months before coming back. Only other thing I would say is that the ear cushions may need replacing down the line.
Besides that issue they still sound amazing, are able to hold a charge, connect to bluetooth and can be used like normal. You will just have to ensure the switch remains in the off position after turning it off until it can be fixed/ replaced.