"What Noise Cancelling???"2.0 starson by EscapePod
Pros: Very lightweight - very inexpensive.
Cons: Noise cancelling is non-existent. I use it with MS Communicator (VoIP). During testing, my correspondent claimed he could clearly hear our boss two cubicles away, and not speaking very loudly (hmmm... great spy tool).
Summary: Noise cancelling issues aside, receiving sound is very good. Buttons seemed very easy to use, and the on-off switch was welcomed. With the occasional very low sale prices, this unit can be considered a good throw-away headset.