Get clear, smart security right where it matters with the Blink Outdoor 4 security camera system and Blink 1440p Wi-Fi video doorbell bundle. See everything in crisp 1080p HD with live view and talk through two-way audio in the Blink app using this camera system. The doorbell features infrared night vision and offers a wide, head-to-toe HD view, so you never miss a visitor or package.