I have one of these in the grey color shown in the “one size fits all” picture (not available in this deal). For the price it isn’t bad, it’s comfortable enough. Sound quality is poor, as expected at the price point. Good enough for playing nature sounds to fall asleep to, but music isn’t great on it. No bass response and it’s hard to get it positioned over the ears correctly on both sides, at least on my head.
I found unless I slept on my back with my head perfectly centered the speakers dug into the back of my head. Had a short battery life (couple of hours) so OK for getting to sleep, but not for, say, blocking out someone snoring. In any case, the charging connector on the unit completely broke after a couple of weeks, so now it’s just a headband with big plastic chunks in it 