DAVID CLARK H10-56 HELICOPTER HEADSET

For really noisy helicopters. This model offers the best noise attenuation with a certified noise reduction rating of 27dB.  Conforms to MIL-M-27291A With U-174/U plug.

• Supersoft Headpad
• New Comfort Gel, Undercut Ear Seals
• Changed Wire Boom with the M-101 amplified dynamic microphone
• Conforms to MIL-M-27291A
• Coil Cord (5' Extended) with U-174/U Plug
• 5-year Guarantee
• FAA TSO approved C57 CAT. B and C58 a
• Exceeds RTCA/DO-214 Standards
• Weight (without court assembly): 20 oz.

  NRR 27 dB NOISE ATTENUATION DATA - MODELS H10-56 Frequency (Hz) 125 250 500 1000 2000 3000 4000 6000 8000 Attenuation (dB) 17.6 25.0 30.9 33.9 36.9 38.4 39.0 37.7 35.7 Standard Deviation 1.9 3.0 2.2 1.3 1.5 2.1 2.1 2.5 2.2