Matching Receiver and Transmitter:
1.Turn on the transmitter by the switch on right side of it.
2.Install the batteries for the receiver.The LED inside the receiver starts to keep flashing.Press vibration or shock button immediately after batteries are put into the receiver firmly.Then the LED will stop flashing and only light which indicates that the transmitter and the receiver have matched each other successfully.
3.If LED stops flashing on its own without press any button in the transmitter,take out the batteries.Wait for at least 10 seconds and try step 2 again.
4.Put the cover on the receiver firmly
5.Attach the receiver to the collar.