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In recent decades, wireless doorbell systems that do not require wall wiring have become popular. The doorbell button contains a built-in radio transmitter powered by a battery. When the button is pushed, the transmitter sends a radio signal to the receiver unit, which is plugged into a wall outlet inside the building.
You will only be able to connect Ring Doorbell to a (hard)wired doorbell. The doorbell must have a transformer with a voltage of 8 VAC â 24 VAC. Wireless intercom systems, and doorbells using a DC transformer are not supported.