2K Head-to-Toe Video & Color Night Vision: Capture all porch arrivals and departures in greater detail. Our award-winning starlight sensor amplifies low light for vivid color images. Two-Way Audio: Easily respond to visitors by pressing the \"talk\" button in the Wyze app. Smart Notifications & Voice Deterrence: You\'ll receive instant notifications on your phone for any visitor or package delivery, ensuring you\'re always informed. Additionally, the doorbell can alert visitors that they are being recorded with a voice prompt when enabled. Wired Installation Required: Hardwire Wired Doorbell to your existing doorbell wiring and doorbell chime inside for around-the-clock power and peace of mind. Power requirement：16-24V AC >=10VA. Product dimensions along with required installation clearance: 4.3 in x 1.7 in x 0.9 in. IP65 Weatherproof: Rated to withstand any weather. 24/7 Local Recording with MicroSD Card: See what happened start to finish with continuous local recording. (MicroSD card sold separately.)