Time-tested Sound Quality: The Hesh ANC's 40mm drivers provide incredibly high-quality audio with a dynamic range, a gnarly bass, and superb acoustics. AND enjoy an incredible 22 hours of battery life when active noise cancellation is enabled. Noise Cancelling Madness: Use active noise cancellation to block out outside noise. Hesh ANC offers a four-mic digital active noise cancellation system that is competitive with other options. 22 Hour Battery: A single charge will give you an incredible 22 hours of playback, and if you do run out of juice, a quick 10-minute charge will give you an extra three hours. Never lost with Tile - Skullcandy's Tile technology makes it incredibly simple to locate both headphones and maintain your