Introducing Blink Outdoor 4 Battery Extension Pack — Accessory for Outdoor 4 smart security camera, 4-year battery life, set up in minutes, batteries included

Blink Battery Extension Pack works with Outdoor 4 (sold separately) to provide additional battery life and performance to your camera for continuous peace of mind.
Four-Year Battery Life — Extend the battery life of Outdoor 4 up to four years with standard use.
Do more with Outdoor 4 — Increase clip recordings, engage more frequently with two-way audio, enhance resolution and night vision brightness, and more without frequent battery replacement.
Set up in minutes — Insert the four included batteries, pair with Outdoor 4 (sold separately), and mount anywhere inside or outside of your home with ease.
Includes one Battery Extension Pack and four AA lithium metal batteries.