The Premier WiFi Doorbell can connect to home WiFi and achieve a two-way intercom between the doorbell and a cell phone. When a visitor presses the doorbell, sound is activated and the camera will start sending real-time images and audio to the cell phone. The user will receive the call to check who the visitor is, and then intercoms with the visitor.• Supports 2.4G WiFi• Detects movement and sends push notification in real time• Built-in IR night vision• Control remotely• Share access to your camera• Supports real-time video and audio chat with visitor• Supports picture snapping and video recording function• Micro SD slot (card not included) Sends push notification of motion detection in real time Built-in infrared night vision Supports picture & video recording function | Premier Accessory Group Premier WiFi Doorbell with Infrared Video Camera