Note:
Add on more receivers: Plug in the receiver. Press the volume button (the second button) of the receiver for 3 seconds and hold it, it enters the pairing mode.
Then press the doorbell that you want to pair. After the pairing, lose the volume button.
Package Includes
1 x Push Button (Transmitter)
1 x Plugin Chime (Receiver)
2 x Screws
1 x Double-Sided Adhesive Tape
1 x 12V 23A battery for Transmitter
1 x Screwdriver
1 x User Manual