RadioWorks Product Detail David Clark Model H6780-51 Hard Hat Attachable Features Specifications Documents Connect directly to portable radio with no adapter required Designed for attachment to Hard Hat assemblies Durable 6-foot extended coil cord terminated with radio-specific connector Hard hat not included 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 No additional specifications are available for this product 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