3M™ PELTOR™ OPTIME™ I (H510P3E) 
Product description
Attachable earmuffs for 3M G3000 helmet and 3M G500 visor holder for the head, with ear pads stuffed with a unique combination of liquid and foam, which enables optimal seal with minimal pressure, even after they have been worn for a longer period of time. Standard SNR is 27 dB.
EN 352-3
