Competitor Earmuffs - . Manufacture ID: CP0100CS. Traditional design multi-position earmuff with a very economical price. Features:. - Durable construction for use in rugged environments. - Fully adjustable steel headband and individually adjustable earcups for a personalized fit. - Foam filled ear cushions have a soft breathable surface that provides superior comfort. - Noise reduction ratings:. NRR 26 - Over The Head. NRR 26 - Behind The Head. NRR 23 - Under Chin. : Warranted against manufacturer defects.