Noise cancellation not as good as it used to be

Hi, to me it sounds like you have turned on Transparency Mode. It picks up the surrounding sounds and amplifies them. Are you able to toggle Transparency Mode on & off.

I don’t have access to the manual/guide, but you are meant to be able to switch between High ANC (active noise cancelling), Low ANC, and Transparency mode in the Wyze app and on the headphones.

Edit: here’s the page from the manual

from the post by R.Good: