Features: 1.HD Clear Video: the camera has a 76 degree Angle of view, can clearly display the picture outside the door, equipped with infrared night vision, automatically open at night, improve family security. 2.Two Way Audio: Through two way audio, whether you are at home or not, only need the APP to communicate with visitors through the realization, with noise reduction microphone, sound is clear. 3.Multifunctional: Wireless camera can achieve real time mobile phone monitoring, support two way call, photography, recording and other functions, support 2.4G WIFI (not 5G WIFI). 4.APP Remote Control: The doorbell can be controlled through the APP, automatic working mode, you can watch live video to monitor your front door. 5.Easy Installation: You only need to download the APP and connect it to the doorbell, no wires and cables are required, attached with instructions, you can refer to the instructions to use. specification:Item Type: Wireless Visual Doorbell Material: ABS Online Users: Support up to 9 users to share, when a person views) Viewing Angle: 76 degrees Night Vision: 850nm Resolution: Vga,640 x 480 Audio Input: Highly sensitive microphone Audio Output: Built in speaker Network Protocol: Tcp/Ip, Http, Tcp, Udp, Dns, P2p, EtAI Wireless Network: Wifi 802.11b/g/n Built in Polymer Lithium Battery: 800mAh PackageList:1 x Doorbell 1 x Indoor Unit 1 x Instructions 1 x Sticker 2 x Screw 2 x Screw Expansion Tube 1 x Remove Card Pin 1 x Charging Cable