Special Features:

23-position foam and air hearing protectors; noise reduction rating over head 21, behind head 20 and under chin 20; frequency protection low-moderate, medium-very good and high-very good; plastic-covered metal headband lightweight foam cusions

Properties:

An item consisting of two earcups, each of which are filled with sound attenuating material. It is designed to completely cover the wearer's ears and protect them from high intensity sound. It may include a headband or it may be designed for mounting onto headware, such as a helmet. For items containing earphones, see headset, electrical and headset-microphone. For items designed to be inserted into the ear, see plug, ear.