SmartSound analyzes your sound environment and ensures that your individual audio settings with active noise cancellation (ANC) and HearThrough are automatically applied to deliver the desired sound quality. The intelligent active noise cancellation (ANC) responds to your surroundings and activates when unwanted background noises are detected according to the settings made in the Sound+ app. The headphones feature eight microphones, four of which are used by the powerful digital ANC to filter out ambient noise. With the Elite 85h, you can customize your music settings for a personalized sound experience and enjoy exceptionally clear sound quality with custom-made speakers. Thanks to up to 36 hours of battery life with a single quick charge (with ANC turned on), the Elite 85h will accompany you throughout the day without faltering. Advanced call technology uses six of the eight headphone microphones to further enhance voice quality and reduce wind and background noise. This results in crystal-clear sound quality that you can rely on for your phone calls, even in challenging conditions. With one-touch connectivity to Amazon Alexa, Siri, or Google Assistant, you can schedule appointments, search for events in your area, or have text messages read aloud with voice commands. The Elite 85h is designed to withstand the elements. The headphones detect when they are removed and pause music playback or call acceptance. Conversations are muted.