What Are PNR Headsets? Passive noise-reducing headphones and earphones do not offer active noise-cancelling electronics. Instead, closed-back sealed headphones achieve passive noise-reduction by physically covering the ears to help block out external noises. Passive noise-reducing earphones offer an in-ear design that forms an acoustic seal that helps to block background noise and allow for increased fidelity at lower volume levels. The best passive noise-canceling headphones, however, are circum-aural types that are specially constructed to maximize noise-filtering properties. That means they are packed with layers of high-density foam or other sound-absorbing material, which makes them heavier than normal headphones. The tradeoff of all that extra weight is a reduction in noise of about 15 to 20 decibels (dB). But considering jet engines create 75 to 80 dB of noise inside the aircraft cabin, passive models have some serious limitations. That's when active noise-canceling headphones are best. PilotUSA PNR Headsets Pilot Communications has a full line of well designed, comfortable and top reviewed PNR headsets ranging in cost from $ 130 to $ 375. Compared to popular models like David Clark H10.3 you will find they stack up very well indeed. The top of the line PA-2170BLU PNR headset is BlueTooth capable and pairs up with a bluetooth phone or music devices. It attenuates noise by 26db and retails for $ 375. Next in line is the PA-2170T which lacks bluetooth capability but is cell/satellite capable and is cell/satellite phone capable as well can connect a CD player, iPod, MP3 or external radio. It will attenuate noise by 26db and retails for only $ 195. The bottom of the line retail for $ 130., are cell/satellite and music capable, and offer 24db of noise attenuation. Remember the children and be sure and check out this outstanding child's PNR headsets with 24db of noise attenuation! Check all of them out at PilotUSA PNR Headsets today! In the meantime keep your wings straight and level Hersch! ps: Please share "What Are PNR Headsets" with your friends on Facebook and Twitter!