This lightweight Scan ear defender is suitable for general purpose use. It is effective in reducing noise levels, whilst still allowing the wearer to hear normal conversation. The soft and wide PVC ear cushions enhance comfort, and the adjustable cup height is designed to fit the majority of wearers. The defender is foldable for easy storage. This ear defender has a Single Number Rating (SNR) of 28, meaning it will reduce noise by 28 decibels (db). Soft and wide PVC ear cushions enhance wearing comfort and acceptance Conforms to EN352-1:2002 Adjustable cup height is designed to fit the majority of wearers Foldable for easy storage SNR 28dB