Keynote

Use Handoff to transfer Keynote presentations
When your Mac, iPhone, iPad, or Apple Watch are near each other, you can use Handoff to pass a presentation you’re working on from one device to the other. For example, if you’re working on a Keynote presentation on your iPhone and you’re near your Mac, you can pick up the presentation on your Mac and finish the presentation there.
Handoff requires:
OS X 10.10 or later on a Mac
iOS 8 or later on iPhone or iPad
iPadOS on iPad
Bluetooth® 4 (Bluetooth LE) on both systems
Both devices using iCloud and signed in to the same Apple Account on the same Wi-Fi network