PREMIUM ACTIVE NOISE CANCELLING. Rail ANC uses adjustable 4-mic noise cancelling to silence the world around you UP TO 38 HOURS BATTERY + RAPID CHARGE. Stay connected with up to 38 hours of battery life (10 hours in the earbuds plus an additional 28 hours in charging case). With Rapid Charge, just 10 minutes of charging gives you 2 hours of listening SWEAT AND WATER RESISTANT. Rated IPX4 with sweat and water resistance, these buds are made to withstand any adventure while blocking out unwanted ambient noise PERSONALIZED SOUND IN THE SKULL-IQ APP. Customize your sound with Personal Sound by Mimi, Stay-Aware Mode, and fine-tune your EQ BUILT-IN TILE FINDING TECHNOLOGY. Find your earbuds near and far when you register your product in the Tile App. BUY WITH CONFIDENCE. Skullcandy 1-Year USA Limited Warranty included