David Clark MODEL H6240-35 Behind the Head (BTH) – No Adapter Needed
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Behind-the Head, dual ear style – wear with or without hard hats or helmets
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Connect directly to portable radio with no adapter required
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Durable 6-foot extended coil cord terminated with radio-specific connector
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PTT button conveniently located on headset ear dome
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Quality components and rugged construction
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Undercut, Comfort-Gel ear seals for maximum comfort
Noise Attenuation Data
NRR
23 dB Frequency (Hz) 125 250 500 1000 2000 3150 4000 6300 8000
Attenuation (dB) 14.1 21.9 29.4 32.0 29.7 35.2 36.2 38.1 37.4
Standard Deviation 2.5 2.5 3.0 2.7 2.2 1.7 2.5 2.9 2.8