In some implementations, the LED indicator is configured to illuminate through a peripheral edge 1040 of the doorbell button 1002 that surrounds the button top 702. The doorbell camera 106 is electrically coupled to the remote chime 1006 via a bypass unit 1012 powered by a transformer 1010 that provides an input AC voltage e. g. , by converting a mains power supply of 110V to the input AC voltage of 8V, 10V or 12V. The remote chime 1006 is configured to ring in response to a press on the doorbell button 1002. In some circumstances, a conventional doorbell is electrically coupled to the remote chime 1006 that is further coupled to the transformer 1010.