Review on Black KTC Aluminum Ear Buds with In-Line Controls for iPhone/iPad/iPod - Koss iL200k by Patricia Muller

For the price you can usually find ($17-25) they are very, very good value. Noise isolation works well, frequency response is good, bass is excellent. Interchangeable ear pads in 3 different sizes help you find the right fit. The mid-range headphones work well for me and are very comfortable, even when worn for long periods. The SPL (Sensitivity) on them is a mite on the low side. So if you're used to the explosive power of standard Apple buds, you'll have a hard time getting them to eardrum-bursting volume. If you don't need a microphone, the KEB30 offers a 9 dB higher SPL for the same frequency response and noise-isolating ear tips. I am very happy with them. Considering the rate at which I lose headphones (I think a pair or two a year), replacing them at $25 a piece isn't that hard. I recommend unconditionally.