Electronic Ear Defenders Noise-proof Earmuff Sport Shooting Ear Protect Muffs UK
Type: Noise-proof Earmuff. 1 Noise-proof Earmuff. With noise reduction level (NRR) of 22dB. With auto power off function (when no operation after 4 hours) to extend battery life. Special function noise reduction level (NRR): 22 dB.