The Headphone (1) Pro supports Active Noise Cancellation (ANC) with a maximum depth of 46 dB. We recommend downloading the Nothing X App and navigating to Noise Control to check your ANC settings. The app offers multiple options including High / Medium / Low / Adaptive modes.
Please also note the following:
1. If the ear cushions are not fitted tightly, poor seal can reduce or negate the noise cancellation effect.
2. In ANC Strong mode, there is an FIR convergence time of 7–15 seconds upon first wearing or switching to the mode. After convergence, the best noise cancellation performance can be experienced.