This smart wireless door chime security system includes 1 receiver and 6 sensors for monitoring doors, windows, drawers, and similar entry points. It supports app control through Smart Life, voice control with Alexa and Google Assistant, and remote operation for flexible security management. Instant notifications alert you when a door or window opens, while adjustable volume from 0-110 dB lets you tailor the alert level. With a wireless range up to 656' and over 1 year of battery life, it is designed for reliable home or business use.