Function Introduction: This wifi doorbell is the use of wireless technology (WIFI) developed out of a doorbell. Wireless doorbell wiring is not required, installation is simple and flexible, voice intercom or visual voice intercom, monitor, camera and unlock functions. Features: Support WiFi Cable support TCPIP interface, can be connected Movement detecting,Intrusion alarm zone Support APP Function,Can be applied Android,　iphone ,ipad APP Software 1 wifi doorbell Support 8 APP users Support real time video and audio chat with visitor Support picture snapping and video recording function Camera:200 PIXELS 、Field of View: 140° Super Width Support Night vision and built-in IRCUT technology,available day and night Shell waterproof design，IP55 There relay signal output,Electronic door locks can be controlled Package lists: 1*WIFI DOOR BELL 1*Mounting Bracket 4*Standard Screws 4*Wall Anchors 1*Waterproof Cover 1* power adapter 1* manual Specifications: Wireless connection WIFI 　A/B/G/N Camera CMOS(1/3")　　200 PIXELS Field of View 140° Super Width Video VGA / 720P（640*480） Audio Support ,Speaker and Microphone APP Function Support,Android,　iphone ,ipad APP Software APP users A wireless doorbell can support 8 APP users Relay Signal Support,Controllable Power locks Achieve open function Movement detecting PIR function LED PIR lights Built-in 6 LED lights for night work Power Input 12V Packing size 230*110*80 MM Packing weight 525g