iSkin has introduced its Cerulean X1 In-Ear Noise Isolating Earphones. The Cerulean X1 earphones feature 9mm neodymium drivers in specially designed bass-enhancing chambers, three sets of interchangeable silicone comfort buds to provide optimal fit and noise isolation, and come in Onyx (black) or Blizzard (white). The iSkin Cerulean X1 In-Ear Noise Isolating Earphones are available now for $100.