Answer your door from anywhere with Video Doorbell and help protect your home inside and out with our wire-free Outdoor 4 smart security camera. See and speak from the Blink app — Experience 1080p HD live view, infrared night vision, and crisp two-way audio. Two-year battery life — Set up yourself in minutes and get up to two years of power on each device with the included AA lithium batteries and Sync Module 2. Enhanced motion detection with Outdoor 4 — With our all-new Outdoor 4, enjoy a wider field of view and be alerted to motion faster with dual-zone, enhanced motion detection.