with indoor receiver, white color With a built-in HD camera It can be controlled from a mobile phone With motion sensor Two-way audio and voice messages: This video doorbell is equipped with a passive infrared sensor that detects even the slightest movement at the entrance. When the visitor presses the doorbell, an immediate notification is sent to their mobile phone. The video provides real-time, clear, two-way audio so you can instantly see, hear and talk to your visitors through the phone app. Longer standby: works with a built-in battery 2.4GHz Wi-Fi Compatibility: The video doorbell connects to a 2.4GHz Wi-Fi network and provides a range of up to 20 meters. Night Vision: The video doorbell camera offers crystal clear images and videos. With built-in infrared (IR) lights, you can see clearly even in the dark. Intelligent IR-cut technology automatically detects ambient light conditions and switches to night vision, giving you a wide viewing angle of 65°