All-new Blink Outdoor 4 (4th Gen) Wire-free smart security camera, two-year battery life, two-way audio, HD live view, enhanced motion detection, Works with Alexa 2 camera system

Outdoor 4 is our fourth generation wire-free 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 Choose to store events in the cloud with a free 30-day trial of the Blink Subscription Plan or locally with the Sync Module 2 (included) plus 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 two Outdoor 4 cameras, one Sync Module 2, four AA lithium metal batteries, two mounting kits, one USB cable, and one power adapter.