3M peltor earmuff over the head ,Helmet mounted

3M™ Peltor™ Optime™ 98 versatile over-the-head earmuff, stainless steel headband for consistent force and effective hearing protection, earcup pivot points that tilt for optimum comfort and efficiency, ultra-light liquid/foam filled earmuff cushions, color-coding for compliance sighting.
Material: ABS
NRR: 23Db
SNR: 28dB