After the batteries are installed, turn the receiver switch to the selection position (each press for a ringtone, if you want to fix a music, the switch to the sound position (music symbol) Can be fixed.
Note:
1. Do not be close to metal objects, avoid Metal magnetic field affect the doorbell results;
2. Do not place the doorbell in the sun and rain.
Packaged included:
1 × Door Bell Transmitter (1× 23A 12V battery NOT included)
1 × Door Bell Receiver (2× AAA batteries Not included)