3M™ PELTOR™ SportTac™ Shooting Model Folding Headband, 24dB (Class 4) MT16H210F-478-RD (Each)The smooth, level dependent function eliminates abrupt sound cut off. Protects against harmful impulse noise while letting in, and even amplifying, ambient sounds. Smooth level dependent function, which eliminates abrupt sound cut off Interchangable shells makes it easy to change colour A pair of red and black shells included Collapsible for easy storage Audio input for external radio Specifications Brand PELTOR CSA Class 4 Attenuation Rating 24. 0