David Clark H6740-51 Behind the Head Headset Overview:

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

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

NOTE: the VOX/PTT switch on the H6200-M headset must be in PTT mode when using a Mototrbo radio in it's VOX mode. The radio will do the rest. If the PTT button is pressed it will put the radio back in PTT mode. to return to VOX mode simply change the channel and then back again and it will reactivate VOX mode.

David Clark Series 6700 Radio Direct headsets provide clear communications and hearing protection for high-noise environments. These headsets connect directly to portable radios with no adapter required. H6700 Series headsets are also Intrinsically Safe (IS) and carry FM Approval for those areas that require Intrinsic Safety ratings, while providing the same rugged durability and comfort afforded by all David Clark Company headsets. Ideal for oil rigs and gas refineries, chemical and paper plants―virtually any potentially explosive industrial or manufacturing environment.

Modular Configurations provide even greater flexibility with headsets utilizing interchangeable communication cords for connection to a wide variety of radios.

WARNING: The Series 6700 is Intrinsically Safe (IS) when connected to an IS approved radio. When connected to an IS approved radio, the resulting IS level is that of the lowest of the two. When connected to a non-IS radio the resulting system is not IS approved.

23 dB NRR
David Clark Part Number 40416G-51