Special Features:

Nickel plated copper anti-sparking and corrosion resistant headframe; fluid filled, ventilated, sponge-padded head frame air cushions; adjustable; noise reduction rating - 21 decibels

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.