I chose these headphones because I wanted to discover what 3-way earphones worth of a brand recognized in the pro environment. I also crack because the seller gave me a great price 220 instead of 400 for others! The headphones come with a large protective case + a kit of different size foam and silicone tips! By cons no adapter is included for this price! Regarding sound quality, I'm not an expert to give a comment, I prefer to let the pro do it for me (eg lesnumeriques.com). I can still specify that it seems that the sound is fairly neutral, ie no bass enhancement like other manufacturer ... the high, mid, and voices are much more distinct than 1 channel headphones.