The easy-to-install doorbell plug-in adapter allows you to power your compatible video doorbell around the clock from a standard wall socket. With the doorbell plug-in adapter, your video doorbell is ready to protect your home around the clock without the need for battery replacement or professional installation. Works with Video Doorbell with Cable, Video Doorbell (2nd generation), Video Doorbell (2nd generation), Video Doorbell (2nd generation) and Video Doorbell (2nd generation). Works with Wired Video Doorbell, Video Doorbell (2nd Generation), Video Doorbell, Video Doorbell 2, Video Doorbell 3, Video Doorbell 3 Plus, Video Doorbell 4, Battery Video Doorbell Plus, Video Doorbell Pro, Video Doorbell Pro 2, Video Doorbell Wired or Ring Alarm Outdoor Siren.