Battery-Saving Button + Always-On Plug-in Receiver -
Button: Powered by 1xAAA batteries (included), lasts up to 1 years with daily use (low energy consumption).
Receiver: Unlike battery-operated doorbells, it eliminates frequent battery changes a safe, low-maintenance solution for seniors and assistive living facilities.
Effortless Setup+ Expandable System - Designed with a memory function for one-time setup, home security doorbell requires no reconfiguration even after a power outage, saving you time and hassle. All CallToU doorbell push buttons and receivers can connect with each other.