A popular H10 series stereo compatible headset offering the benefits of 17-22 db of additional switched electronic noise canceling capability in a portable unit. Its 9V battery module is small & lightweight and has a user selectable auto shut-off feature. Clear, crisp communications are assured with the M-7A noise canceling mic which is attached to a flex-wire hinged boom for exact positioning. Maximum comfort is attained thru a soft double-foam headband and large ‘Undercut’ gel ear seals. Noise reduction rating (with ENR off): 23db. FAA-TSO approved. 5 yr mfg warranty.