Cap-mounted design allows for easy use with most hard hats
Made of non-conductive material
Metal components of the headbands and helmet attachment mechanisms are shielded in non-conductive material
Fit can be verified with 3M™ E-A-Rfit Dual-Ear Validation System
Electrically insulated - designed to protect hearing from mid-level industrial noise
Noise Reduction Rating (NRR): 24 dB. CSA Class A