The Skullerz 8880 Hard Hat Mounted Earmuffs are designed for comfort and noise reduction both on and off the job site. These noise-canceling earmuffs seamlessly integrate into Skullerz Hard Hat and Safety Helmet dedicated side accessory mounting slots for a secure fit. The earcups are designed for all-day, comfortable wear and are also adjustable and can be tilted up, down or stored onto the side of the hard hat or safety helmet to create a customized fit. The earmuff's ABS outer construction is durable for long-lasting protection in tough environments and the polished stainless steel wire arms offer smooth adjustment and increase longevity of the earmuffs. These mounted earmuffs are tested to Method for the Measurement of Real-Ear Protection of Hearing Protectors and Physical Attenuation of Earmuffs.