Bluetooth Headphones

[fred]

These appeal to me but the non-replaceable lithium battery throws me off. I had to replace a pair of Sony ones when the battery went dead after about 15 months. So what is the life expectancy of lithium batteries ? Googling brings up a lot of 'ifs' and 'ands' and 'buts'

I just don't want to spend that sort of money on something which will become an expensive paper weight within a short period of time.

[Graham.]

You might find that "non replaceable" actually means "non replaceable without a little skill and perhaps a soldering iron"

Those slotted screws on the side look promising for a start.

No user serviceable parts in this post.