They were bigger than I expected but I hope they good quality. The distance these will go surprised me. Here is what they say about these headphones: Flexible connectivity using USB or jack. even with a perfect trace, the application is difficult and the cut out does not line up perfectly. I found that the shoulder straps tended to slide off her shoulders, but moving the harness up to the highest setting and tying together the strap ends to make a sort of "chest belt" has completely solved that problem. The leg extension doesnt lock so if you want to decline and use it for an ab bench, just load the leg extension with enough weight so it wont move, or use a bungee or Velcro strap to hold it down. 6 thin built I ordered a small and it hits me mid thigh if that helps I also cant rate the sound or microphone quality since the comfort level of these earbuds absolutely failed for me, and so I didnt even TRY to test them out,,,, unfortunately. I waited to review until we?ve used it for a while. Sound quality is astounding, to the point its actually better for some things than my rather expensive speaker setup - but it needs a really, really good headphone amp to drive it.