This is not a setup, because the PageTurner will work directly as soon as they are connected via Bluetooth. But I have listed some compatible PageTurner for information.
Please note that this PageTurner simulates a keyboard (cursor keys) and therefore the keyboard on your iPad or iPhone is no longer opened in text fields. If you need a text input, then you have to turn off the PageTurner. With the iRig BlueTurn, this can also be done by holding down the left button on the pedal for a longer than 5 seconds.