RadioWorks Product Detail David Clark Model H6740-M Behind the Head (BTH) Style Features Specifications Documents Behind-the Head, dual ear style PTT button conveniently located on headset ear dome Quality components and rugged construction Rated Intrinsically Safe with FM Approval (Approved to IS / CSA / ATEX / IECex standards) Undercut, Comfort-Gel ear seals for maximum comfort Noise Attenuation DataNRR23 dB Frequency (Hz) 125 250 500 1000 2000 3150 4000 6300 8000Attenuation (dB) 14.1 21.9 29.4 32.0 29.7 35.2 36.2 38.1 37.4Standard Deviation 2.5 2.5 3.0 2.7 2.2 1.7 2.5 2.9 2.8 Brochures6700 Series Brochure Are you ready to get to work? Get in touch and find out how RadioWorks can help your business. (800) 591-5525
