Blink Video Doorbell + Sync Module 2 | Two-year battery life, Two-way audio, HD video, motion and chime app alerts and…

Answer your door anytime, anywhere from your smartphone with 1080p HD day and infrared night video and two-way audio.
Experience up to two years of powerful battery life, custom alerts, privacy settings, and more.
Choose to save and share clips in the cloud with a free 30-day trial of the Blink Subscription Plan or locally with the included Sync Module 2 and USB drive (sold separately).