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                                                                                                  ROANWELL
                                                                                                  CORPORATION


             MODEL RHM-260 NOISE-ATTENUATING

             UNDER-HELMET HEADSET


























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             Model RHM-260 is a noise­                           FEATURES
             attenuating headset-microphone       EXCEPTIONAL NOISE­                  FREQUENCY        ATTENUATION
             assembly designed to be worn         ATTENUATION: these headsets
             under standard United States Army    have been laboratory tested            75 Hz             15 dB
             helmets and other protective hard    on live subjects under simulated      125 Hz             15 dB
             hats for use wherever high ambient                                         250 Hz             12 dB
                                                  high noise conditions such as
             noise occurs and where ear                                                 500 Hz             23 dB
             protection is needed. The circuitry   those encountered in various        1000 Hz             38 dB
             of this headset may be modified      weapons systems. When measured
             to permit usage with most existing   by the United States of America      2000 Hz             29 dB
             communications systems and with      Standards Institute, Z 24.22,
             new systems as they are developed.   the nominal results were:

                 ROANWELL CORPORATION 180 Varick Street, New York, N.Y. 10014. • Tel: (212) 989-1090
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