* Suitable for environments with a medium to high level of noise* The best choice in high frequency noise situations * Smooth telescopic size regulation* Non-conductive* Conforms to EN352* Clips straight into the Zenith helmets without an adapter* Requires KAWAC00003 bayonet adapter for the plasma helmet (sold separately)SNR raing dependant on helmet combination:* Plasma, HP, Superplasma - SNR 25* Zenith - SNR 23
