Doorbell video instruction_1

[Nederlandse tekst hier]

Please Watch the video before using the doorbell:

How to change melody?

What to do if receiver doesn’t connect?

Returning

We sell this product with very little profits
Please firstly try to watch the video when you have any questions.
Please write an ‘unsellable’ on the LVB label before you returning so that the product will not be sent to other customer.

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