I understand that the matter is in audio chips and codecs and all that, but damn it, the impression is ambiguous. Perhaps a defective copy, I'll try to somehow agree on a replacement, maybe they will sound better from another batch. Different pros: Well, everything seems to be fine, and ergonomics and color coated gud, functions, BUT! Got cons: From two different devices over a wireless connection, they sound completely different, and I would not say that it is excellent.