uvex K30H are dielectric, high-protection earmuffs that can be directly attached to helmets with a 30 mm Euroslot. When used in combination with the uvex pheos E helmet, the new plastic arm ensures safety during electrical work. The length of the soft arm can be adjusted to ensure perfect positioning. The earmuffs can be quickly and easily moved into the operating, standby and resting positions with a rotate and swivel motion. The memory foam sealing pads create an excellent seal and fit around the head. If using the earmuffs in applications with high hygiene requirements, we recommend using the hygiene kit, article no. 259997. Regularly changing the sealing pads provides a secure seal and extends the service life of the earmuffs.