Skullcandy Rail ANC True Wireless Bluetooth Active Noise Cancelling Headphones, Black Mission accomplished. Rail ANC, the new 4-microphone, adjustable digital active noise cancelling headphones. Rail ANC was created with a simple set of design requirements - it had to be the best in sound, looks, comfort and intelligence of any headphone ever created, and it had to get better over time. Welcome to the future of audio that can stand the test of time. Use your words. Rail ANC is built with Skull-iQ, a powerful technology that runs innovative voice recognition features and allows for new updates via the Skull-iQ app. Hands-free voice commands are available in multiple languages. By simply starting a command with "Hey Skullcandy...", you can control media players, summon your assistant (including Alexa and iHeart), access Spotify® or even take a photo. The sound of science. Rail ANC is built with large 12mm drivers and ergonomically designed ear tips for a super comfortable, noise-isolating fit. Mimi’s personalized sound lets you adjust the sound to your individual hearing. You’ll sound better with Rail ANC, too—the smart Clear Voice microphone isolates your voice and reduces background noise. Never miss a call, never lose a pair. Multipoint pairing lets you pair the earbuds to two devices at the same time, so if your phone rings while you’re watching a movie on your laptop, your connection will automatically switch so you can take the call. Rail ANC also comes with Tile™ finding technology built in. If an earbud is lost, you can “ring” it directly from the free Tile app.