FeaturesWorks with Apple HomeKit / Samsung SmartThingsEmits a security siren and flashing LED lightsCan be hardwired to a power sourceCustomisable settingsWeather-resistant designEnhance your Ring Alarm Security System and let the neighbourhood know you have whole-home security covered with the Ring Alarm Smart Outdoor Siren. If there\'s an emergency, Outdoor Siren can help others quickly identify your home with an adjustable volume siren and flashing LED lights. Connect an additional compatible power source and turn on the Dusk to Dawn feature to use Ring Alarm Outdoor Siren as an everyday security sign.