RadioWorks Product Detail David Clark MODEL H6240-55 Behind the Head (BTH) Features Specifications Documents Behind-the Head, dual ear style – wear with or without hard hats or helmets Connect directly to portable radio with no adapter required Durable 6-foot extended coil cord terminated with radio-specific connector PTT button conveniently located on headset ear dome Quality components and rugged construction 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 Brochures6200 SERIES BROCHURE Are you ready to get to work? Get in touch and find out how RadioWorks can help your business. (800) 591-5525