01 / Turn the keyboard to BT mode. The mode switch is located on the rear side of the keyboard (Fig. 01).
Fig. 01 / Retro Classic BT Switch Controls Diagram.
02 / Put the keyboard in Pairing Mode by holding down (FN) key and the ( - ) key (Fig. 02), located on the upper-right corner of the number pad with a small Bluetooth logo. Hold down these two keys for a few seconds until the blue LED starts a SLOW flash.
Fig. 02 / Bluetooth Pairing Mode Activation.
03 / On your Mac, navigate to "System Preferences" and select "Keyboard". Next, click on "Set Up Bluetooth Keyboard". For Windows 10, go to Bluetooth Settings and select "Add Bluetooth or other device".
04 / Once the setup wizard finds "AZIO Retro Classic BT", click on "Pair".
05 / Once pairing is successfully completed, the blue flashing LED (Marked "W") will stop flashing. The keyboard is now ready for use.