3M Helmet Muff

3M Helmet Muff
3M™ Optime™ 95 behind-the-head earmuffs feature low-profile ear cups that fit well with most helmets, eyewear and other safety equipment. Provides effective hearing protection against high-frequency noise.
Features
·         For noise levels up to 95 dBA
·         Stainless steel construction resists bending and warping.
·         Ear cup pivot points tilt for optimum comfort and efficiency.
Noise Reduction Rating (NRR)*: 21dB. CSA Class B.