Wired+Plug-In Adapter | Doorbell with 5MP Super HD video: Incridible 5MP HD, with advanced HDR/3D DNR and distortion correction technologies, bings you sharp and detailed images even in low light conditions. Non-stop power around the clock with Plug-In Adapter, for people who don't have existing doorbell wiring. Answer the Door Faster: With its built-in mic and speaker, you can hear and talk back to the visitors even if you're not at home. You can also preset voice messages or automatic replies for times when you're occupied Accurate Alerts: You can set it to alert you when human is detected, ignoring trivial non-human passers-by, and you can set motion zone to decide where objects’ movements will be detected Flexible Storage Options: It supports pre-roll recording, which provides valuable 6s footage from before an event is triggered. Recordings can be stored to a micro SD card (Max. 256GB, not included), Reolink NVR or Reolink Cloud 2.4/5GHz Dual-Band WiFi: No worry about network disconnection; its 5GHz WiFi ensures a stable and fluent network experience. No worry about harsh weather as well; it's waterproof 180° Wide Viewing Angle: Find the right position for your doorbell with its 15° wedge kit and enjoy the super wide field of view. Get more extra surrounding details for better and quicker responses Two Charging Options: You can charge your doorbell by connecting to the existing wires of your house or by using the power adaptor. Choose one that suits your home best Chime Included: Plug the chime included to any electrical socket at any room and be confidently alerted when visitors "knock". You can choose 1 of its 10 tunes and adjust its volume Answer Your Door, Hands-Free: As easy as saying “Hey Google, show me the backyard”, you can check what’s happening there on your Google Nest Hub