Buy Refurbished: eufy Security Wi-Fi Video Doorbell, 2K Resolution, Real-Time Response, No Monthly Fees, Secure Local Storage, Free Wireless Chime (Requires Existing Doorbell Wires, 16-24 VAC, 30 VA or above) with fast shipping and top-rated customer service.We would like to show you a description here but the site won’t allow us.Eufy Doorbell 2K (WIRED) didn't register my VOICE and make ECHO! Queries.