Sennheiser PMX 680 Sports

It is very good. An important tool for me – I have 3 pairs of PMX680 as it is part of my working tools. You don't even notice it on. You can still wear your hat comfortably. I don't need to worry about sweat affecting the sound quality. I use it only outdoor everyday for about 6 months during metal detector season. I can't leave home without them. waterproof and can still wear a hat. the buds come off.

Pretty much the best you can get in their class – I looked hard for a pair of rugged,light-weight headphones that I could carry as easily in a pocket or in my laptop-bag, that would not fall - or fly - off while I played squash and that sounded decent playing PC games and MP3s or podcasts from my iPhone (I'm no audiophile, but I have a good ear). After a brief period while they broke in (during which they sound decidedly muddy) I have to say I'm really pleased with these very well designed headphones and would not hesitate to recommend them to anyone, especially for the price, which incidentally need be no higher than ~$70. Excellent, comfortable fit, very light and flexible yet reassuringly rugged, good sound quality - especially voice, detachable in-line vol.control and extension cable. Not much. Sound quality isn't perfect of course, but I suspect that's largely a constraint in the design.