Real-Time Two-Way Audio & Video CallWhen the doorbell is pressed, you can talk to visitors directly via your smartphone, ideal for communicating with couriers or delivery people while away from home.HD Night Vision & PIR Motion DetectionEquipped with infrared night vision for clear visibility in dark environments; PIR sensor detects movement and sends instant alerts to your phone.Strong 50m Wi-Fi Penetration2.4GHz Wi-Fi signal penetrates steel doors, wooden doors, and brick walls, ensuring stable connectivity without signal loss or sound issues.Family Group Sharing & Easy InstallationSupports device sharing with family members; easy battery-powered setup with adhesive or screw mounting, no wiring required for homes and rentals.Battery-Powered Long-Life DesignRuns on batteries for wireless operation, eliminating the need for power cables; reliable performance for 24/7 home security monitoring.