These are a pair of M-Audio IE-30 In-Ear monitors. These are really nice in-ears; comparable to Shure E-5's in terms of high fidelity and bass response. These are dual driver in-ears and they emphasize the entire frequency spectrum. You can hear every little detail crystal clear with these. I am including the monitors, a set of replacement and different sized ear buds and the metal case for them. I thoroughly cleaned these with rubbing alcohol and they are now like new. I was amazed how much I could hear the first time I used them. I am playing at a new church that uses wedge monitors so I have no need for these anymore. You can get specs on this at http://www.m-audio.com/products/en_us/IE30.html. **Please note, the website is showing a slightly newer version. These have a 24 inch cord and a silver case.** These go for $250 brand new, I am asking $100 shipped. No trades.