Blink Outdoor 4 (newest model), Wireless smart security camera, two-year battery, 1080p HD day and infrared night live view, two-way talk ? 3 camera system Outdoor 4 is our fourth generation wireless smart security camera that helps you protect your home inside and out right from your smartphone. 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 with the included AA lithium batteries. Enhanced motion detection ? Be alerted to motion faster from your smartphone with dual-zone, enhanced motion detection. Person detection ? Get alerts when a person is detected with embedded computer vision (CV) as part of an optional Blink Subscription Plan (sold separately). Save and share clips ? Securely store your footage in the cloud with a free 30-day trial of a Blink Subscription Plan. You can also back it up locally with your included Sync Module 2 and a USB drive (sold separately). Works with Alexa ? Connect to an Alexa-enabled device to engage live view, arm and disarm your system, and more using your voice. Includes three Outdoor 4 cameras, one Sync Module 2, six AA lithium metal batteries, three mounting kits, one USB cable, and one power adapter. We want you to know Outdoor 4 is not compatible with accessories designed for Outdoor 3rd Gen including Blink Floodlight Mount and Blink Solar Panel Charging Mount. A Blink Sync Module (included in the system) is required for use. Blink Outdoor 4 is compatible with all Blink Sync Modules.