Add outdoor siren outside your home to alert others if an emergency arises at your home. if alarm is triggered, outdoor siren emits a security siren and flashing led lights to alert others and help locate your home. • requires alarm base station. • compatible with 1st and 2nd generation ring alarm devices and accessories. take your siren outside. enhance your alarm security system and let the neighbourhood know you have whole-home security covered. 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 alarm outdoor siren as an everyday security sign. dusk to dawn. with the dusk to dawn feature, you can activate the logo light on a schedule in the ring app. With dusk to dawn activated, your outdoor siren will be visible after dark and will let the neighbourhood know you have security covered. to use the dusk to dawn feature you will need to power outdoor siren with a quick release battery pack combined with a solar panel for a continuous charge or hardwired for non-stop power. Outdoor siren also supports ring plug-in adapter (2nd generation) which allows you to power the dusk to dawn feature from an internal electrical socket. this product will be dispatched by one of our trusted suppliers. You’ll be contacted by their selected courier about your delivery.