One of the best selling passive Hedsets by David Clark!

• Super Soft, Double Foam Head Pad
• New Comfort gel, undercut ear seals
• Certified Noise Reduction Rating - 23 dB
• Reduced headband force
• Universal Flex Boom for perfect microphone placement
• Exclusive M-7A, the most advanced noise-cancelling microphone available
• Low-profile volume control knob with detent settings
• Molded cord assembly made to exceptional pull and flex standards
• 5-year Guarantee
• FAA TSO Approved C57 Cat. B and C58a
• Exceeds RTCA/DO-214 Standards
• Weight (without cord assembly): 16.5 oz.

Special Features:

• Passive, robust
• General Aviation
• FAA TSO Approved C57 Cat. B and C58a

Technical Specifications

• Earphone Type: Dynamic
• Earphone Impedance: 150 ohms(300 each; wired in parallel)
• Earphone Sensitivity: 90 dB SPL on flat plate coupler, re 1mW input @ 1KHz
• Earphone Frequency Response: 200-5,500 Hz
• Earphone Plug: PJ-055 (.25" phone plug)
• Boom Type: Universal Flex
• Headpad/Hardware: Super-Soft, Double-Foam Headpad,Lightweight Hardware
• Noise-Canceling Mic: M-7A Amplified Electret
• Mic Impedance: 50 ohms +/- 20%
• Mic Sensitivity: 400mV RMS ±6dB into 150 ohm load @ 1kHz for 114dB SPL input
• Mic Freq Response: 300Hz--3.5KHz per RTCA DO 214
• Mic Plug: PJ-068 (.206" phone plug)
• Cord: 5 ft.Straight
• Weight/Headset Only: 16.5 oz.