The Scan Hi-Vis Ear Defenders are effective in reducing noise levels, whilst still allowing the wearer to hear normal conversation. The soft PVC ear cushions, combined with a wide, adjustable headband, ensure a comfortable fit for the user. The high-visibility ear cups enable the ear protection to be easily identified by others whilst on site. The ear defender has a Single Number Rating (SNR) of 33 decibels (dB) enabling the user to maintain safety in noisy environments. Conforms to EN352-1:2002.