Level Dependent microphones in each ear-cup ensure excellent directional hearing, offers natural sounds and enable you to hear conversations, warning signals and other important information without compromising protection. Easy to reach controls let you manually tune the AM/FM radio accurately. Combined with the automatic frequency control you will lock on to your favorite station for the best reception available even in low signal areas. For optimal safety communication radios can be connected via the external sound input as well as MP3 players and other common devices.