Is it possible to Bluetooth your music?

I recently bought an iPad to find that it doesn't have the headphone jack or the lightning headphone jack. I don't have Bluetooth headphones or the AirPods etc so was wondering if it was possible to plug my normal headphones into my phone and Play music through my iPad but listen to it through my phone? I don't know if that made sense…

If you or i Tunes on both devices, you can have your iPad shut off, and still hear the music on your phone.

Yes, but not like that.

You need either one of these, which replaces the lightning to headphone adapter for the newest ipads with USB-C connections:

Or, a generic Bluetooth receiver for headphones, eg. One something like these