place the liberty bell button wherever you like. it requires neither a power cable nor a battery. the bell button is simply glued to smooth surfaces (e.g. front door, mailbox, pane, etc.). the smooth mounting plate is screwed on beforehand on a rough surface (e.g. rough plaster). a free socket is required for the counterpart, the bell.
the bell button uses self-generated electricity to transmit a radio signal. the bell receives the radio signal and rings with the selected ring tone. the signal can also be received on the smartphone via wifi and the tuya app.
The white bell cannot be engraved.
MANUALS: