Update: I am getting a second set to leave at work. I have been using these for videoconferencing daily and the sound quality is great, people can hear me very crisply. Sometimes those in the next office over are in the conference with their speakers on, I can hear for myself just how clear it is. I just have to pin the mic portion to my shirt but even when it is hanging down, they can hear me - I am not a loud talker.These also work great on my phone for making calls and listening radiation free to podcasts and music!Also, I'm pretty sensitive to odors, but I never noticed any skunky smell or odor like the other reviewer was talking about.The first pair I got worked but one side was quieter and overall the sound was low. I decided to exchange for a replacement and the difference was very noticeable! These have a very nice, deep sound and really, you don't want to blow your ears out with bass, but these meet my standards for good sound quality and I am picky.Really a great price for these. I use mainly for headphones, haven't tried the phone capabilities fully. But the button on the mic will hang up the call, I do know that...I don't hook over the ear with the way they curve at the end, would be better if they were just straight, so that might be why others had issues with them staying in, when I just put in my ear they stay just fine.They come with a nice zippered storage case, 3 sizes of earpieces, and a sturdy clip to keep the cord(s) where you want it. The packaging was high quality.Note, you have to treat these with care and not just wad them up like regular wired ear buds. I carefully roll them up around my fingers and they easily go back in the case, then I throw that in my bag.They take some getting used to, but having the assurance of the health benefits and also the fact that they advertise the rest of the wire being protected from giving off RF was the main reason I stuck with this brand and type of ear buds. Glad I did, might even buy a second pair to keep at work.