Does the HCSR04 have a direct beem at long distance?

Greetings! I’m starting a project with the HCSR04 and trying to get an idea of the picture that it sends to the Pi. Is the beam spread out in a cone shape -<)

or is it a very direct beam? -----

Any help is appreciated. Thank you!

It is very much a cone. Power diminishes rapidly with distance.

Weedpharma