Active Noise Canceling: Get into your flow faster and tune the rest of the world out with active noise canceling. ^^ 7 HR. Playtime (5 HR. With ANC) Amps Air earbuds have a 5 hour battery life with active noise canceling. Quick Charge The Amps Air + create an immersive music experience balanced with powerful bass, clear highs and vocal accuracy. ^^ Sweat and Water Resistant Charge the buds in their stylish, slim case up to 2.5 times for longer listening and fewer recharges. ^^ Slim Case Design with 2.5X Charges Designed to move with you, the Amps Air earbuds are rated IPX4 for sweat and waterproof protection. ^^ Premium Sound Amps Air + also features quick charging technology to minimize downtime and get you back to the music faster.