Check the listing for details. Blink Smart Wifi Video Doorbell – Wired/Battery, Sync Module 2 – Black. Color: Black, Condition: New. Listed at 54.99 USD. Blink Smart Wifi Video Doorbell – Wired/Battery, Sync Module 2 – Black PRODUCT DESCRIPTION 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).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 Wi-Fi in the app.Works with Alexa — access live view, two-way talk, receive motion and chime alerts, arm and disarm your doorbell, and more.Includes one Video Doorbell, one Sync Module 2, and mounting kit (including corner mount, screws, and anchors). ? Copyright . All rights reserved.