Blink Sync Module XrBlink 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 easily see what s happening around your entire property.Unlock even broader coverageUp to two Outdoor 4 cameras can now go even farther with Sync Module Xr's extended range: up to 250 feet away from your home in Xr mode and up to 400 feet in XR+ mode (video resolution may vary).Two-year battery lifeSet up Outdoor 4 in minutes and get up to two years of power with the included Aa lithium batteries (with regular use).Enhanced motion detectionBe alerted to motion faster from your smartphone with Outdoor 4 s dual-zone, enhanced motion detection.See and speak from the Blink appExperience 1080p Hd live view, infrared night vision, and crisp two-way audio.