Yeah I don't actually value happiness but insofar as I do it simply means headphones. Good headphones. Audio quality yeah, but also unique way it plays songs, listen to everything all over again. And convenience, so for instance Airpods are the best headphone right now because it works well with masks, you don't have to put one over the other, meaning removing one requires removing the other. The convenience, the battery life, all that. Audio isn't just what you hear when everything's set up, it's also hearing sound when other systems would play nothing.