1. Double-click the left earphone to turn on/off active noise reduction;
2. Mobile phones/tablets with EMUI10.0 or above or HarmonyOS system 2.0 or above: Open Settings > Bluetooth, and click the button behind the headset model to select Active Noise Reduction > Open Now for setting;
3. Enter the headset active noise reduction setting interface through Smart Life APP, turn on/off the switch, and adjust the noise reduction gear:
Wear headphones in a noisy environment, slowly drag the blue dot to find the gear that suits you best in a circle (360).