The Nav-Data Technologies deluxe headset has one of the best passive noise reduction ratings of most headsets.
Nav-Data Headset :
2 year manufacturer warranty
26 dB Noise Reduction
Switch selectable stereo or mono operation
Dual volume controls
3.5mm auxiliary audio input jack for music, voice, etc.
Gel earseals for extra comfort and noise attenuation
Super padded head band for comfort during long flights
Full flexible mic boom – stays where you put it!
Noise canceling electret mic
Weighs only 14.3 ounces