Open the module's edit panel and look for the Visibility options (usually grouped in the module's default/Global section): tick Hide On Desktop, Hide On Tablet and/or Hide On Mobile, then Save. A red Hidden on badge with the matching device icons appears on the module's card in the page editor so you can see it at a glance. As the panel notes, responsive visibility only takes effect on the live page, not inside the editor preview. Not every module exposes this option.