Again, everything is disposable, nothing lasts indefinitely (and I keep everything much longer than most people. My cars last 10-20 years).
Just because your headphone battery fails before some other internal component, doesn’t change this. I’ve had plenty of devices fail. Electronics are no different than batteries (which are electronic devices).
With wired headphones (all headphones actually) the cones age - I can’t imagine what most cones look like after 10 years of exposure to atmospheric oxygen and heat/cooling cycles. I seriously doubt any of them reproduce sound anything like when new.
Again, everything is disposable, nothing lasts indefinitely (and I keep everything much longer than most people. My cars last 10-20 years).
Just because your headphone battery fails before some other internal component, doesn’t change this. I’ve had plenty of devices fail. Electronics are no different than batteries (which are electronic devices).
With wired headphones (all headphones actually) the cones age - I can’t imagine what most cones look like after 10 years of exposure to atmospheric oxygen and heat/cooling cycles. I seriously doubt any of them reproduce sound anything like when new.