This article will show you how to enhance soundcore Sport X20's noise cancellation effect.

1. Try other sizes of ear tips to ensure the size you're using fits well and creates a tight seaI. If one earbud feels stable and the other does not, try a combination of ear tips such as medium in the left and large in the right.

2. To check if you're wearing the earbuds in the perfect position, take the Fit Test on the soundcore app for more information. If the earbuds are not worn properly, you may not experience the best noise cancellation. 

3. Make sure you turn on "Active Noise Cancellation". You can check its status in the soundcore app.

4. When using both earbuds for the first time, select "Adaptive Noise Cancelling", so that the most appropriate noise reduction parameters will be selected according to your ear canals.

5. Test the earbuds in a different environment and with a different Bluetooth device to see if that makes any difference.

Note: In a noisy environment and at high volume, you may feel that the noise cancellation performance is not as strong.