The IQ Siren is a wireless Z-Wave device that allows you to have additional sirens placed throughout the home. It plugs into any standard outlet, acts as a repeater in the Z-Wave network, has a rechargeable back up battery and three LED lights that strobe when the siren is triggered. Pair up to 3 IQ Sirens with the IQ Panel. Mounting Locations: • Kitchen • Living Room • Basement • Bedrooms • Garage Built-in Lithium Battery: 430 mAh Alarm Power: 1.7W Max Standby Power: 0.7W Max Volume: 105dB Operating Temperature: 0°C to 40°C Operating Distance: Up to 550 feet outdoors Frequency Type : Z-Wave Plus