Function: • Peltor H7,3G hearing protection designed for demanding noisy environments.• Hardhat adaptor and connector to suit visors, etc. esp for BOC hard hats. Features: • Helmet connection clip is 25mm wide.• Dual cup shell for unique attenuation performance, extra soft and wide ear cushions. • Easy to clean and adjust. • Flexible headband wires can rotate ear cups up onto the helmet when not in use.