RadioWorks Product Detail

  • David Clark Model H6740-51 Behind the Head (BTH) Style - No Adapter Needed

David Clark Model H6740-51 Behind the Head (BTH) Style – No Adapter Needed

  • BTH style for applications requiring hard hats or protective headgear
  • Connect directly to portable radio with no adapter required
  • Durable 6-foot extended coil cord terminated with radio-specific connector
  • Marine-grade, stainless steel hardware and rugged construction
  • PTT button conveniently located on headset ear dome
  • Rated Intrinsically Safe with FM Approval (Approved to IS / CSA / ATEX / IECex standards)
  • 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

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(800) 591-5525
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