Blink Outdoor 4 + Sync Module XR Wire-free smart security camera, two-year battery, go up to 400 feet from your home with extended range 2 camera system

Outdoor 4 is Blink's fourth generation wire-free smart security camera that helps you protect your home inside and out right from your smartphone.
Blink Sync Module XR is the first system hub to extend the range of your Blink Outdoor 4 wire-free smart security cameras so you can see whats happening around your entire property with ease.
Even broader coverage With extended range, place up to two Blink Outdoor 4 cameras up to 250 feet away from your home, and up to 400 feet away when in XR+ mode (video resolution may vary).
Two-year battery life Set up Outdoor 4 in minutes and get up to two years of power with the included AA lithium batteries (with regular use).
Enhanced motion detection Be alerted to motion faster from your smartphone with Outdoor 4s dual-zone, enhanced motion detection.
See and speak from the Blink app Experience 1080p HD live view, infrared night vision, and crisp two-way audio.
Put home in your hands Control up to 10 Blink devices from the Blink app making it easy for you to arm, disarm, and use a group of your cameras together.
Save and share clips Choose to store events conveniently in the cloud with a free 30-day trial of the Blink Subscription Plan or locally with the Sync Module XR and a MicroSD card (up to 256 GB 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 XR, four AA lithium metal batteries, two mounting kits, one USB cable, and one power adapter. Blink MicroSD card for local storage sold separately.