This has been happening for several months, if not over a year. When I have my headphones plugged in to an audio jack, no sound comes out. Laptop, phone, or airline music/video player. Sometimes the headphones need to be charged, other times they're fully charged up. I'm not sure what is the issue.
Additionally, the battery drains very quickly despite being off. Travelling for work, I charge my headphones for the week or even a couple days and by beginning of Day 2, the headphones are dead despite only 2 hours of usage. Also not sure what to do.