The two pedals will blink.
Press and hold the left foot pedal again and the left pedal will stay lit. You are now in mode 1. Mode 1 is the BT-105 mode for the iRig Blueturn.
Next, go to the Bluetooth settings on iPad and pair the iRig Blueturn like any other bluetooth device.
Finally go into unrealBook, choose settings->network, choose Airturn Setup. Make sure Airturn Support is set to ON.
Select my device is a BT-105. (If Keyboard is available, choose this selection instead).
The iRig Blueturn should now turn pages.
NOTE: The Blueturn is like a bluetooth keyboard pedal. To show the on screen keyboard, press and hold the UP pedal for 3 seconds. To hide the keyboard, press and hold the up pedal for 3 seconds again.