SordinHEAR2 inside providing excellent sound quality and four different audio profiles (Hunting, Focus, Shooting and Comms); Compact cup design; Easy-to-use push buttons to control the electronic functions; Level-dependent function allows to hear ambient sound such as warning signals, moving vehicles and important information while being safely protected from hazardous noise; Amplification of weak sound; Natural sound reproduction using high-quality speakers inside the cups; Sound reproduced using the level-dependent function is limited to maximum 82 dB; Automatic switch-off after 4 hours if no button is activated, saving battery time; Low battery warning when approximately 40 hours is left of the battery life; IP67 tested