The active noise cancellation of HearID ANC not only automatically adapts to the noise level around you but also individually to your ears. The proprietary HearID technology analyzes how sound moves in your ears as well as the pressure in your ear. The technology then creates a personalized profile that optimizes noise isolation precisely for you, your ears, and your environment. Liberty 3 Pro offers you a variety of ways to customize and enhance your listening experience so that it truly feels like your own. Liberty 3 Pro supports LDAC technology for a Hi-Res Audio Wireless certified listening experience. It transmits three times the amount of data from your device to the earbuds to capture every tiny detail of your favorite music. Headphones that sound amazing to you may be insignificant to someone else. To ensure that fans can enjoy an ideally tuned sound profile with Liberty 3 Pro, the smart HearID program checks your hearing and music preferences and adjusts the sound accordingly. The noise-canceling effect and pressure relief in the ear are carefully coordinated to provide just the right balance of comfort and noise reduction. Ideal for quieter environments. The low level reduces pressure in the ear for even more comfort and effectively filters out background noise, for example, in the garden or library.