Makeblock Airblock Operation Manual page 3

Pair the controller with Airblock via Bluetooth
2.
1 Turn on the Bluetooth controller and the indicator light starts blinking blue light slowly.
2
Get the controller close to Airblock. Long press the button
the indicator light starts blinking rapidly. It will connect via Bluetooth automatically.
Long press the button until the
indicator starts blinking rapidly.
When you need to connect another Airblock, you should long press the button
to the new device and it will connect via Bluetooth automatically.
+
When the indicator turns solid on purple, it means
you've successfully paired the controller with Airblock.
on the controller and don't release it until
again. Get the controller close