ALEKO HL3501 WIFI Wireless Visual Intercom Smart Doorbell for Smartphones and Tablets WIFI enabled video doorbell operates through a WIFI signal and can easily be connected to your local network and then synced to your smart phone or Tablet PC running Android or iOS ,it allows you to see who's at your door from your mobile device Intercom, unlock door. Motion detector. Aluminum display. It can work via both WIFI and RJ45 port.8 doorbells and Visitor presses button and you get a video intercom at your phone.You can see , hear and speak to your visitor with free app--IPBell for selecting iOS or android mobile devices as well as take a photo or recording of the guest. Android users can download the APP in Google play, iOS users can search "IPBell" in App store to install the APP IFI doorbell has capabilities of tamper alarm, PIR detection, night view. 8 Doorbells and 8 Mobile devices can work at the same time. It is easy and quick to install. The user manual is pretty clear and complete both in installation/setting up/operation