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MODEL RHM-260 NOISE-ATTENUATING
UNDER-HELMET HEADSET

COMFORTABLE FIT: the thin over-the-head straps
that hold the assembly in place are constructed
of a flexible nylon material with an adjustable
Velcro pile-and-hook fastening device to fit all
head sizes. The straps do not interfere with the
helmet’s sweat band. The solid back-of-the-neck
band, which maintains the acoustical seal, is
secured inside the ear cups by a ball bearing joint.
Because this joint is flexible, the ear cups gently
conform to the shape of the wearer's head
without undue pressure.

HIGH SPEECH INTELLIGIBILITY: ear cups with
increased mass help provide 80% word
intelligibility in a 110 dB noise environment.

DYNAMIC EARPHONES: supplied in impedances
from 5 Ohms to 600 Ohms. Housed in sturdy ear
cups with soft, foam-filled cushions.
INTERCHANGEABLE DYNAMIC AND CARBON
BOOM MICROPHONES: a wide variety of
microphones is offered. These components may
be modified for use with virtually all
communications systems.
MINIATURE TOGGLE SWITCH: is waterproof and
is protected from moisture by an internal
silicone seal housing. Can easily be held in the
palm of a hand and is equipped with a three-
position, single pole,push -to-talk switch with
momentary and lock “on” actions. Other
switching arrangements upon request.
ENVIRONMENTAL TESTING: Model RHM-260
has passed all environmental tests normally
required for this type equipment including
temperature extremes, humidity, vibration, drop,
immersion and salt-spray (such as specified
in MIL-E - 551190).
FSN NUMBER: 5965-176-3681
EASY FIELD MAINTENANCE: the plug-in design
of the components, cordsets and terminations
facilitates field repairs. The only tool necessary
is a small screwdriver.