Developed specifically for hunters and marksmen, the Peltor SportTac has a slim design and contains Green and Orange interchangeable cups. Peltor SportTac has an audio input for connecting and external radio, and a level dependent function that amplifies weak sounds and attenuates loud ones. The external communication and level dependent functions are independant of each other, which ensures extra good reliability and better safety. These hearing protectors have been tested and approved according to PPE directive 89/686/EEC and EMC directive 89/336/EEC, which means that it meets the demands for CE labelling. Powered by two AA batteries (included), the typical period on continuous use that can be expected is 600 hours. Continuous use is defined as 20% use in silent noise 45-50dB, 60% use in medium noise 70-75dB and 20% use in high noise 95-100dB. To avoid unnecessary battery drainage, the SportTac is fitted with and automatic shut-off feature after 2 hours of no active functions. Two warning signals are emitted every ten seconds for one minute after 1:59 hours of use, to indicate that the unit will switch off. There is also a low power battery indicator to prepare you to replace the batteries. With more than 50 years of experience, the Peltor brand promises superior quality communication solutions that provide an optimal balance of comfort and protection. It is our goal to ensure that we satisfy your needs through the provision of exceptional leadership, expertise, quality and service excellence. With our global technology, manufacturing and experience we do more than simply develop products that help your workforce to operate in safety and comfort. The advanced engineering and technology inherent with the Peltor brand fits with the high standard of quality and innovation of a continuously evolving range of product solutions that you, our customers, come to expect.