PHYSEN Classic Piano Design Wireless Doorbell Kit of 3 Door Chime and 1 Push Button, 4 Level Volume with 52 Melodies Available, Learning Mode for Easy Pairing

How learning door bell works ?
First please check the products and make sure they are power connected;
Press transmitter button and LED will lit if transmitter works;
There are two buttons on receiver's left side,one is 'volume' button,the other is 'music' button.Press 'volume' to test volume function, total 4 level;Press 'music' button to test function, 52 melodies are available
Long press 'volume' button for 5s until LED flashes to get entered into 'pairing' state. Call bell melodies can only be changed under 'pairing' state;
Press transmitter button to make paired, receiver sounds if receiver is paired with transmitter successfully;
Press 'music' button to switch required melody for different transmitters;
Press transmitter to send RF signal to make paired after required melody is chosen;
Long press 'volume' button for 5s until LED stops flashing to exit 'pairing' state;
Press transmitter to have a final check about pairings works;
Do the same way to check other receivers and make paired;

How to avoid signal interference:?
Outter RF signal may interfere and also paired with receiver,Long press 'music' button for 10s to clear receiver memory.
After memory is cleared, only one transmitter will stay pairing, others need re-made 'paring' Note:please try to avoid outter interfere RF signal when pairing tansmitter with receiver.

Range of application:
House,office,hotel service,community building,factory, construction site and other areas that is suitable for short-distance wireless environments.
It also can be best gift as its new design and nice appearance, are very popular for household.