ZONEWAY ZW-D1 Mini Smart Wireless Wifi Video Intercom Doorbell System, 15ft Night Vision, 2.5mm Lens Up to 135 Degrees View Angle, Free iOS and Android APP to See Who's at the Door & Say Hello From Anywhere, IP66 Waterproof This smart Wi-Fi Video Intercom and Doorbell will help you secure your home or business. It operates through a Wi-Fi signal and can easily be connected to your local network and then synced to your smart phone or Tablet PC running Android or iOS. See and speak with visitors using your smartphone or tablet, whether you're upstairs or at office. The Smartphone application lets you receive notifications if anyones at the door and there are features to set up an alarm or the built in motion detector to alert you of any activity. When visitors press the door bell you will receive an incoming alert on your phone and this will enable you to view the visitor from the camera feed as well as take a photo or recording of the guest.