3M PELTOR SportTac is an intelligent active hearing protector specially developed for hunters and shooters. The soft adjustment of the level-dependent function of the hearing protector allows the user to have a particularly pleasant sound reproduction and less interference. The electronics respond at the speed of light and protect the user's hearing from loud impulse noises. Included in the package is a pair of ear defenders with interchangeable Black/Red and Hi-Viz shells. This 3M personal protective equipment must be used in accordance with legal regulatory requirements and relevant health and safety standards, as well as with all user instructions, warnings, and limitations accompanying each product. It is essential to follow the instructions and government regulations regarding the use of each product in order for these products to protect the user. Improper use of personal protective equipment can cause injuries, illnesses, or death. To select and use the products correctly, users should seek advice on health and safety from competent personnel. For more information about the products, visit www.3m.com/es/seguridad