ZOOZ Z-Wave Plus Indoor Siren ZSE01 Wireless control, notifications, and trigger by other smart home devices (when included to a Z-Wave gateway controller) Works with micro USB power supply (and 4 AAA batteries as BACK-UP power ONLY, batteries NOT included) Z-Wave Plus certified product: ZC10-16045044. Improved 500 chip for faster and safer wireless communication. Acts as signal repeater when powered by AC adapter Works great with most of the Z-Wave systems supporting simple on/off switch commands (including ADT PULSE)