Vktech&reg; Wifi Wireless Video Door Phone Intercom System Ir Night Vision Home Improvement Visual Doorbell WiFi video doorbell connects to network via wireless router or network cable.Mobile devices include smartphone or tablet,could connect to the doorbell;After the visitor rings,mobile devices could interact with doorbell via real time video and audio,user can view the visitor,then decide to whether intercom or open the door etc WiFi doorbell support motion detection alarm,with IR night vision,5V DC power supply 2.4G Wifi,real time viewing,max to support 100MB broadband,support Android and IOS operation system One Wifi doorbell support multi mobile device,one mobile device can work with multi wifi video doorbell With touch calling button