Shop › OTIS EARSHIELD 31DB HEARING PRTCTN OTIS EARSHIELD 31DB HEARING PRTCTN $29.49 Otis Technology Ear Shield 31dB Hearing Protection, Black Finish FG-ESH-31 Quantity: Add To Cart Added! Otis Technology Ear Shield 31dB Hearing Protection, Black Finish FG-ESH-31