Blink Outdoor 4 (4th Gen) – Wire-free...

Out of doors 4 is our fourth generation wire-free smart security camera that helps you offer protection to your home inside and outside 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 stand 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 a part of an optional Blink Subscription Plan (sold one at a time).
Save and share clips — Make a selection to store events in the cloud with a free 30-day trial of the Blink Subscription Plan or in the community with the Sync Module 2 (included) plus a USB drive (sold one at a time).
Works with Alexa — Connect to an Alexa-enabled device to engage live view, arm and disarm your system, and more the usage of your voice.
Add even more coverage with a second Sync Module 2 (included) − enhance up to 10 devices per Sync Module and create groups to customize schedules and arm/disarm one at a time.
Includes eight Out of doors 4 cameras, two Sync Module 2 hubs, sixteen AA lithium batteries, eight mounting kits, two USB cables, and two power adapters.