You'll hear and feel the difference immediately. When the ENC is turned ON, low frequency noise cancellation improves by an additional 17-22 dB.
 
	
Super Soft Head Pad
	
New Comfort gel, undercut ear seals
	
Battery Power Module - One 9 volt battery for up to 25 hours of operation.
	
Exclusive, patented flex/wire boom for easy, precise microphone placement.
	
Reduced headband pressure.
	
Pilot Selectable Automatic-Shut Off Feature.
	
M-7A noise canceling electret microphone provides clear, crisp transmission.
	
Stereo compatible for use with stereo intercom and cabin entertainment systems.
	
Weight (without cord assembly): 18 oz.