Active noise cancellation for immersive sound. Transparency mode for hearing and connecting with the world around you. Three sizes of soft, tapered silicone tips for a customizable fit. Sweat and water resistant. Adaptive EQ automatically tunes music to the shape of your ear. Easy setup for all your Apple devices. Quick access to Siri by saying "Hey Siri". The Wireless Charging Case delivers more than 24 hours of battery life