The Orange SC3 earmuffs are indicated for use in low frequency noise situations. Suitable for extremly noisy environments such as: airports, car racing, while using pneumatic drills. etc. TECHNICAL DETAILS SNR >31 dB (A) Attachment to the helmet with a bayonet adapter not included. Universal 30mm euro slot Performance differentiated by colour Smooth telescopic size regulation Non-conductive Certified for use with KASK helmet
