The noise cancellation also worked surprisingly well. Because the noise cancellation is passive, there's no need to worry about highly unnatural air pressure inside your ear, or keeping spare batteries around. On public buses and in the car, the Moray kept engine noises and voices to a very low hum. In a quiet room, voices, footsteps, mouse-clicks and keyboard clacking were all inaudible under quiet music. Of course, with no music, the headphones only dampen outer noise a little bit, unlike actively noise canceling headphones, which will do a lot to reduce noise even with no music playing.
During long use, the Moray headphones were always comfortable. Even after hours of listening to music, my ears were never sore and I never felt the need to take the headphones out. It is, however, a leap of faith to use in-ear headphones, as they are quite invasive and you are vulnerable to serious ear damage if you're not careful about volume.
My biggest complaint with the Moray came from the cable noise. Any friction along the cable, especially the portion after the R/L split on the cable, would cause a ruffling sound in the headphones. While this is okay for sitting and listening to music, the Moray are designed for mobile use, which means there will be a lot of cable flapping around. A little more of a rugged cable structuring would have been a nice touch, considering the on-the-go nature of this product.
The cable could also have been a little longer and had some management options. At about 5', there wasn't much slack, so there wasn't much freedom for moving around if the cable was, for example, tucked inside a coat. Also, a slider after the Y split on the cable would have been nice to keep the two earbuds from twisting and tangling. It would have been even better if there was some sort of included wrapping structure inside the carrying case to keep the cables neat at all times.
At $40 USD, the Razer Moray hit at the cheaper spectrum of in-ear headphones without a sacrifice to quality. The Razer Moray headphones earn the OCIA.net Seal of Approval.