using slido for an event presentation

I have a presentation for an event with a pretty large audience of about 700 attendees.  I included a QR code in my powerpoint but now notice I will not be able to login remotely from stage.  I know there’s a way to integrate with powerpoint but I’m not handling the PP, a remote event staff will.    Is this the right product for what I’m looking for?  (it’s supposed to be audience participation part of the presentation, about 5 minutes out of my 1 hr keynote)