This is one of the best things I have ever bought with my own hands. Requires a transformer. I connected mine via two Alexa WiFi plugins. (In case you didn't turn off after remote activation) One smart socket on the power supply and one on the transformer. (power adapter = plug-in = extension cord = plug-in = transformer = megaphone) I have a security ring and the siren is not very loud. Now when I get a ring alarm, I can activate the bull horn from anywhere. worldwide with the Alexa App or Alexa Echo/Show at home. Because of the circular indoor and outdoor cameras, I'll only activate if there's a problem that allows me not to wake the neighbors with a false alarm. Since the ring is under surveillance, I'll also let the police through. My settings are: Plugin #1 (always activated) Plugin #2 (to be activated remotely with an alarm). To disable, disable plugin #2. If I can still hear the siren through the cameras, disable security plugin #1). Simple but effective.
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