DescriptionFully-functioning electronic ear muff that automatically compresses harmful impulses and continuous noises to a safe noise level ( below 85 dB). Enhances low level sounds to improve user hearing and communication. Built-in volume controls. Works with 2 AA batteries, included.FeaturesCE-CAT IIIRetail bag which aids presentation for retail salesIndividually packed for vending machines MaterialsABS, PolystyreneStandardsEN 352-1 SNR 31dBEN 352-4
