Mega Noise Cancelling - The Rail ANC listens to the outside noise to actively mute the world around you. You can also adjust the noise cancellation level between mute, hearing and between. Latest Sound Tech - The Rail ANC is Skullcandy's latest premium earbuds featuring our best driver yet with deep bass and a huge dynamic range. Plus, Personal Sound lets you tune the sound to your unique hearing through the Skull-iQ App. 27 Hours Battery - With an incredible 27 hours of battery to keep your Rail ANC powered. The earbuds hold 7 hours and the charging case holds 20 hours with ANC on. Plus, using rapid charge, the first 10 minutes of your charge will give you 2 hours of play. Skull-iQ integration allowing you to customize your sound and control your earbuds. With the app, you can adjust the EQ settings, track battery life, and activate Tile, which helps you locate your lost earbuds. Multipoint Pairing lets you connect your earbuds to two devices simultaneously — Rail ANC will switch between devices seamlessly without the need to re-pair. Buy with Confidence - 1 year CA warranty included.