Function: Peltor H10,3G hearing protection designed for extremely noisy environments.ï¿½Features: ï¿½ï¿½ Hard hat adaptor and connector to suit visors, etc. esp for BOC hard hats. ï¿½ï¿½ Helmet connection clip is 25mm wide.ï¿½ï¿½ Dual cup shell for unique attenuation performance, extra soft and wide ear cushions. ï¿½ï¿½ Easy to clean and adjust. ï¿½ï¿½ Flexible headband wires can rotate ear cups up onto the helmet when not in use.