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Wireless Intercom Systems


SureFire® EarPiece Upgrade

SureFire® Earpieces feature patented noise-reducing filters to provide excellent situational awareness with outstanding hearing protection for clear communications. When the noise-reducing filter in each earpiece is open, normal speech and other sounds at safe levels can pass through and be clearly heard.

For more information please contact an OTTO Representative toll free at 888-234-6886 or at 847-428-7171


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For use only with OTTO Connect Intercoms



  • SureFire Earlock® retention rings ensure the earpieces stay comfortably in place.
  • Manual switch can be closed to shut down situational awareness and provide 21 dB NRR.
  • The SureFire® earpieces automatically block loud impulse noise to provide maximum hearing protection of up to 40 dB NRR whether switch is open or closed.
  • Requires no batteries.
  • Available in Single and Dual Earphone styles. 

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