PELTOR Electrically Insulated Earmuffs - cap mountManufacturer: PELTOR Manufacturer No.: X5P5E Style: Cap Mount CSA Class: None NRR dB: 31 Appropriate for a wide range of applications Earmuff cups are made of non conductive material while the metal components of the headbands and the helmet attachment mechanisms are covered in non conductive material High performance arms; balance durability and flexibility Easy click in click out: Move cups on and off ears easily Store with cups clicked in or out