The Indoor Siren HC-109ZB is an advanced security device designed to enhance your home's protection. Equipped with a powerful 105dB siren, it ensures loud alerts during emergencies or unauthorized entries. Operating on DC5V with an included AC 220V adapter, it integrates seamlessly into various home setups. The siren uses Zigbee 3.0 Protocol, allowing it to connect effortlessly with other smart home devices, creating an integrated security network. Its durable ABS housing and compatibility with wide environmental conditions make it a reliable choice for diverse settings.