CHANGING BATTERY:
Transmitter
Unclip the front cover from the front of the Transmitter (bell push unit) using a small screw driver.
Remove the battery and replace using a new fresh “CR2032” battery, making sure the polarity is correct.
Replace the front cover making sure the clips are correctly aligned and firmly push the case together.
Receiver
Take off the battery compartment cover.
Take out the batteries and replace with new fresh AA (1.5V) * 3 Duracell Alkaline batteries .
Replace battery ready and correct, “Du-Du” sound is heard to confirm.
Close the battery compartment cover back to the chime receiver completely.