Where do I get a code to use airplay?

• When trying to use AirPlay for the first time, you may be asked for a pairing code. That would be displayed on screen of the receiving device.
• If an AirPlay password is set, then you would need to enter that on the sending device. The password setting is on the receiving device. A default password may be set. You can change that password to something new, or disable the password requirement.

From what (sending) device are you trying to use AirPlay?

To what (receiving) device are you trying to use AirPlay?