The Used Alarm.com VDB750 Video Doorbell in White is a modern, rectangular-shaped security camera with a 160-degree view suitable for both homes and shops. It features a wall plug-in power source, built-in microphone and speakers, and is compatible with Amazon Alexa for smart home integration. The video doorbell also includes features such as motion activation, streaming video, and audio recording, providing added security and convenience for homeowners and business owners alike.