Features: Highest independently tested NRR 33dB Innovative undercut design affords a secure fit, all day long The contours follow the shape of the ear canal which means less pressure at the smallest diameter of the ear canal
Features: Highest independently tested NRR 33dB Innovative undercut design affords a secure fit, all day long The contours follow the shape of the ear canal which means less pressure at the smallest diameter of the ear canal