The David Clark H3442 is a dual ear headset designed for high-noise environments, ideal for fire, rescue, and EMS operations. Featuring a behind-the-head design, it ensures clear communication and effective noise attenuation while prioritizing comfort for extended use in demanding situations.
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Overview
The David Clark H3442 is a Behind-the-Head, Dual Ear Headset designed for use in high-noise environments, particularly suited for fire, rescue, and EMS operations. This headset is part of the David Clark Series 3400 and is engineered to provide clear communication while offering superior noise attenuation and comfort.
Features & Benefits
Equipped with an M-7A electret microphone that effectively cancels out background noise, ensuring clear transmission
Dual ear design provides isolated reception and exceptional speech intelligibility, with dynamic earphone elements for high-quality audio
Advanced undercut gel ear seals cradle the ears for superior comfort, even during extended use
Adjustable overhead support assembly for a custom fit, and a reversible headband spring assembly that allows the microphone boom to be positioned on either side
Built with rugged materials, including carbon steel hardware with a black finish, to withstand harsh environments
Microphone On/Off switch located on the ear cup for easy access and control
Ensures clear and reliable communication in high-noise environments, critical for safety and efficiency during emergency operations
Designed for long-term wear with features that reduce pressure points and provide a secure, comfortable fit
Specifications
Weight: 16.8 oz (476 g)
Noise Reduction Rating (NRR): 23 dB
Microphone: M-7A electret, noise-canceling
Microphone Impedance: 150Ω nominal
Microphone Sensitivity: 400 mV +/- 6 dB into 150Ω load @ 1 kHz for 114 dB SPL input
Microphone Frequency Response: 300-3,500 Hz
Microphone DC Supply Voltage: 8-16V, 470Ω, not polarity sensitive
Earphone Impedance: 300Ω each, wired in series
Earphone Sensitivity: 90 dB SPL re 1 mW @ 1 kHz
Earphone Frequency Response: 200-5,500 Hz
Comm Cord: 6 ft. extended coil cord with ¼” stereo plug
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