"OK for office and aircraft -- CNET eval is spot on"3.5 starson by flak4af
Pros: Cancels low freq noise in office, gym, vehicle. Reduces some aircraft cabin noise. Compact, inexpensive. Adequate quality for casual listening. On-ear (as opposed to fully enclosed) pots comfortable, less heat, moisture, etc.
Cons: Did not cancel enough aircraft engine and cabin noise to suit me.
Summary: I like the compact, inexpensive MDR NC7s and would buy again if had to replace. Useful for office, gym machines, when napping in vehicle on long trips (passenger only -- driver needs to hear everything!). However, my next purchase (after knocking off the local 7-11) will be the high-end, fully enclosed around the ear Bose with noise cancellation. Believe ears have to be fully enclosed to realize true noise cancellation in an aircraft cabin.