The sound quality is good, but some hissing sound could be heard may too often which is what ultimately lead me to return the earphones. Comfort is decent, they actually fit really well, the cable has a good length too. Several accessories come with the earphones including a Bluetooth adapter with LDAC , it was ok but again, could better. I also want to add I thought these earphones were very well presented. I tried them with three different smartphones and two different Amp/DACs and the hissing sound was noticeable on all three devices, with both DACs. I want to be clear, this was not constant and was noticeable on just a few tracks, mostly streaming via TIDAL but I could also hear.it with Apple Music. YouTube Music was perfect. I would still recommend these, I'm just going to spend a little more money on trying something else.