3M - Peltor Electrically Insulated Earmuffs 25 DB

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
Compatibility with hard hats; designed for use with a standard hard hat slot
Slim relative to their level of attenuation; protection without all the bulk
Fit can be confirmed with 3M™ E-A-Rfit™ Dual-Ear validation system
Specifications
Style: Cap Mount
Meets/Exceeds CSA Class: A
NRR DB: 25