To resolve the noise cancellation not working well, please refer to the following methods:
1. Firstly, active noise cancellation effectiveness relies on a tight fit of the earbuds. When the earbuds are worn snugly, the active noise cancellation works better. If the earbuds become loose during use, it will cause the noise cancellation to turn off. Adjusting and securely wearing the earbuds again should allow you to retry activating noise cancellation;
Note:
The Xiaomi Buds 5 are semi in-ear earbuds, so their noise cancellation effectiveness is relatively weaker compared to fully sealed earbuds, which is a normal phenomenon.
2. Secondly, the earbuds feature adaptive noise cancellation, which is effective at reducing low-frequency noise such as that found on airplanes, trains, and subways. However, it does not significantly reduce high-frequency noises like car horns or human voices due to safety considerations. If you find the noise cancellation effect on surrounding environments is not obvious during use, please adjust the angle and fit of the earbuds for a snugger fit.