Using AppleScript to select dropdown menu item containing string

Question

The following code selects the menu item of a dropdown displaying the string Mac mini Speakers:

click (menu item "Mac mini Speakers") of menu 1 of popupButton

But I want to select the menu item by substring. In my use case I don't know the full name. So something like this (but this does not work):

click (menu item where value contains "Speakers") of menu 1 of popupButton

How can I specify a menu item by a substring of the content displayed in the menu item?

Answer 1

Testing under macOS Catalina in Script Editor with System Preferences > Sound > Sound Effects opened, the following example AppleScript code clicks the MacBook Pro Speakers menu item for the Play sound effects through: pop-up menu:

tell application "System Events"
    tell application process "System Preferences"
        click pop up button 1 of tab group 1 of window 1
        delay 0.25
        tell tab group 1 of window 1
            click (menu items of menu 1 of pop up button 1 ¬
                whose name contains "Speakers")
        end tell
    end tell
end tell