3M''' PELTOR''' SportTac''' Headsets offer adjustable hearing protection for hunting and shooting. The headsets feature an intelligent, instant-response, level-dependent function to help protect your hearing from sudden loud noise. It has an audio input for external radio and a foldable headband.* Smooth level dependent function, protects the user from sudden loud impulse noise* Equipped with automatic shut-off function* Interchangeable shells make it easy to change colours* Collapsible headband for easy storage* Battery life span: Approx. 600 hours* Audio input for external radioEN352-1:2002EN352-4:2001EN352-6:2002