Wyze Doorbell with existing doorbell

[Newshound]

Is the Intercom powered by 15VDC? I just was in a conversation on that:

Powering Doorbell with 15 VDC from existing Doorbell

Using this device makes it possible to quickly run from 15 vdc power. DROK 090187 DC-DC Volt Buck Converter Step-down Regulator 8-50V 12V/24V/36V to 5V 3A Power Supply Module Volt Inverter Board with Micro USB Adapter Connector Waterproof which be found on Amazon.