Active Noise Cancellation for immersive sound. Transparency mode for hearing and connecting with the world around you. A more customizable fit for all-day comfort. Sweat and water resistant. All in a super light, in-ear headphone that’s easy to set up with all your Apple devices.Fully-functional product in "Like New/Very Good Condition" that may or may not have minor cosmetic defects, blemishes, dents, scratches. Product that has been inspected, tested, and restored to the original manufacturer's operating specifications.