Telephoto lens for cell phone camera

I would like to take a picture of a distant view with my cell phone, but
with digital zoom, the image will be rough.

So I bought a Telephoto lens for a cell phone camera.

↓I bought this. Up to 12x zoom is possible.

↓This is a non-zoomed picture.

↓This is a photo using digital zoom.

↓This is a photo using a telephoto lens.

When this was used, things in the distance were large and clear.
This lens costs about $14. I did good shopping.