Build quality is cheap. Wire across top is falling out. Whole thing feels cheap and flimsy. Audio quality is just very average. Radio reception is also quite poor and even messed up by sustained Wifi traffic. Compared to the Rapoo H8030 2.4GHZ Wireless Headset they are simply crap. I would have got a new set of H8030, which lasted over 2 years but could not find them anymore. Not wanting bluetooth ones, feeling very sad that this is the best Logitech can do.