H9940 Wireless Headset | Dual Ear, Behind the Head Style, M-87 Mic, Dual Volume Control

WIRELESS HEADSET/Dual ear, behind the head style. M-87 type dynamic noise cancelling microphone, dual volume control and 6' extended coil cord with military grade 7-pin belt station connector

DAVID CLARK COMPANY

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Available to order

EDMO # H9940

MFR Part # 40991G-01

Need help placing an order? Call 800-235-3300 or Contact us

Product Description

The H9940 dual-ear, marine-grade, wireless headset is designed to be worn under protective head gear with its behind-the-head style design. It provides excellent comfort, as well as clear and reliable communication. The H9940 can be used in extreme noise environments up to 125 dB. The 9900 Series headsets are designed to be used with the Series 9900 wireless belt stations and wireless push-back gateway.

The Series 9900 Wireless Intercom System is the perfect solution for ground support communications in demanding, high-noise environments such as airline and airport operations, fire and rescue applications, or any application requiring robust, reliable, and secure communications. This system is ideal for push-back operations, wing-walkers, marshalling agents, maintenance mechanics, and de-icing operations. The 9900 wireless system consists of the push-back gateway, wireless belt stations, and any Series 9900 wireless headsets.

Features

Provides crisp and clear communication in demanding environments
Marine-grade, stainless steel hardware for rust and corrosion resistance
M-87 type dynamic microphone is noise canceling and immersion-proof
Hybrid hinged wire/flex mic boom places microphone in the perfect position
Dual Dynamic earphones with titanium nitride drivers and stainless steel retainers
Water-tight, dual volume controls for independent left and right gain setting
6-feet extended coil cord with a military grade, 7-pin Belt Station connector
Undercut, comfort-gel ear seals provide unsurpassed comfort and enhanced noise-attenuation
Nylon overhead support assembly with hook and loop adjustment fits all head sizes
Reversible hardware with 280 rotatable mic boom provide left or right microphone positioning
Passive noise attenuating rating of 23 dB

Specifications

Weight:

16.3 oz (462 g)
Comm Cord:

6 ft Coil, with MAP-57-50 Connector
Certified NRR (3rd Party):

23 dB
Dome Type:

Lightweight, ABS
Hardware:

Stainless Steel (18-8)
Potentiometer:

220 Ω ± 20% (2 each)
Ear Impedance:

35 Ω ± 10% @ 1 kHz
Ear Sensitivity:

100 dB SPL/1 mW @ 1 kHz
Ear Frequency Response:

20 Hz to 20 kHz
Microphone Principle:

Dynamic
Microphone Impedance:

5 Ω (nominal)
Microphone Sensitivity:

325 uV ± 6 dB into 5 Ω load @ 1 kHz for 114 dB SPL input
Microphone Frequency Response:

150 Hz to 8 kHz