Enables remote answering of the door at any time, from anywhere, using a smartphone. Features 1080p HD day and infrared night video, with 2-way audio. Designed for wire-free use with AA batteries over Wi-Fi using the app, or wired connection to existing doorbell wiring to sound the current indoor bell. Works with Alexa to access live video, receive motion and chime alerts or disarm the doorbell, when paired with a Sync Module (sold separately). Works with - Amazon Alexa - iOS App - Android App Battery-Powered or Hard-Wired Bell Push 6m IR/Night Vision Range Camera Resolution: 1080p 30m Range Real-Time Viewing & Video Record Smart Hub Required Works with - Amazon Alexa - iOS App - Android App Battery-Powered or Hard-Wired Bell Push 6m IR/Night Vision Range Camera Resolution: 1080p 30m Range Real-Time Viewing & Video Record Smart Hub Required