How To Disable Mobile Responsiveness?

Hey Guys,

Quick (perhaps strange to some) question. I am using the Edu Clean theme on a website and running a custom child theme of my creation.

I see when visiting the website on iPhone or iPad (depending on browser rotation) the site becomes responsive, with a drop menu, etc.

Is there a quick and easy way to disable the responsive aspect of the theme? I see parts of it throughout the theme files, functions.php and such.

Just would like to keep the hacking to a min.

Perhaps this could be added to theme for a feature, to turn it on and off?

Any pointers on easy way to remove this would be great!