Premium Hi-Vis Earmuffs for Hard Hat Hi-Vis Yellow Features: - Providing protection for noise levels up to 110 dB(A) - 2 positions – Working and resting - 30mm slots to fit most universal hardhats/helmets - Adjustable cup height - Premium quality and comfort Standards: AS/NZS 1270:2012 – Class 5, SLC80 rating of 26dB
