Blink Video Doorbell (2023 release), Two-way audio, HD video, motion and chime app alerts and Alexa enabled ? wired or wire-free (Black) Blink Video Doorbell is refurbished, tested, and certified to look and work like new and comes with the same limited warranty as a new device. Like-New Amazon devices may be packaged in generic Amazon-branded boxes. Answer your door no matter where you are from your smartphone with 1080p HD day and infrared night video and two-way audio. Experience long-lasting battery life, custom alerts, privacy settings, and more. Get alerts when motion is detected or someone presses Video Doorbell. Connect to existing doorbell wiring or pair with a Sync Module (sold separately) to engage live view and two-way audio on demand. Choose to save and share clips in the cloud with a free 30-day trial of the Blink Subscription Plan or locally with the Sync Module 2 and USB drive (each sold separately). Designed for every home, go wire-free or connect to doorbell wiring to also sound your existing in-home chime. Without wiring, you can use your Blink Mini camera (sold separately) as an indoor plug-in chime. Set up yourself in minutes with the two included AA lithium batteries then connect to wifi in the app. We want you to know Blink Video Doorbell Standalone does not include Sync Module 2. Without a Sync Module, live view and two-way audio are available only in response to a doorbell press or motion event. With a Sync Module (or if you wire with your existing doorbell wiring) you'll get these features anytime on-demand. Blink Video Doorbell is weather resistant with a seal that protects against water. We recommend mounting it to your home with the included back plate by following these instructions. Batteries required, even when hard-wired. For Video Doorbell to chime through your existing doorbell wiring, 16 - 24 VCA is required.