Enjoy 10x the coverage — Install Outdoor 4 cameras up to 2,700 feet (open air)/1,700 feet (typical use) from your Sync Module XR+, which is 10x farther than Blink cameras operating on wifi alone. Video resolution may vary.Indoor or outdoor use — Take advantage of open-air range when you place Sync Module XR+ outside your home with the Blink Weather-Resistant Power Adapter (sold separately).Faster live view where wifi is spotty — XR technology runs on the 900MHz band, avoiding typical wifi congestion, and unlocking up to 20% quicker access to live view in areas where your wifi signal is poor.Experience a more reliable connection — Cameras using XR technology have up to 70% fewer disconnects in areas with poor wifi signal strength.Get two-year battery life, even at long range — Blink's patented chip technology unlocks up to two years of battery life when used with a Sync Module XR+ and Energizer Lithium AA batteries (both included).Save and share clips — Choose to store events conveniently in the cloud with a free 30-day trial of a Blink plan (sold separately) or locally with the Sync Module XR+ and a MicroSD card (up to 256 GB – sold separately).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.Works with Alexa — Connect to an Alexa-enabled device to engage live view, arm and disarm your system, set motion-trigger routines from long-ranges, and more using your voice.Includes six Outdoor 4 cameras, one Sync Module XR+, 12 AA lithium batteries, six Outdoor 4 camera mounting kits, one USB-C cable, and one power adapter. Blink MicroSD card for local storage sold separately.