RadioWorks Product Detail David Clark MODEL H6240-M Behind the Head (BTH) Features Specifications Documents Behind-the Head, dual ear style – wear with or without hard hats or helmets PTT button conveniently located on headset ear dome Quality components and rugged construction Switch for PTT/VOX on the ear cup U6210 inline body switch PTT can be added between headset and cord as an additional PTT button. 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