RioRand Wireless Visual intercom doorbell Home Security Camera Monitor Intercom System with have alarm and remote control functions (WIFI 601) 2.4G wifi transmission systems , real-time video transmission , Audio and video data transmission band up to 100M band at most Night version. AC/DC power supply , eliminate the troubles of frequente replacing battery This doorbell work with wifi . It connect with home wifi or wired LAN achieve two-way intercom between doorbell and cell phone One doorbell can connect with Multi cell phone at the same time . Make you and your family can monitor home outdoor surroundings from anywhere Support Android and Iphone device connection