Not only are they powerful, they are surgically precise cutting through outside noise like a samurai. Other than the style, they fit and function just like standard Crocs. I hope this review has been useful for many future/current owners of these BT earbuds. ) Long enough to use without bending over what so ever. Lace underwear fits okay. My guess is that they need them because they 1) need something strong enough to carry some weight. The headphones and iPad are treated well - the piece broke off while unplugging the headphones. My only short 1 mile off road trail managed to shake my phone out but it was pretty bumpy the whole time. Looks purple in the images I hope the yellow ones are available when my birthday comes around.