1、WIRELESS WIFI CONNECTION: Voice intercom doorbell can be monitored and communicated remotely via wireless network without complicated wiring. 2、WIDE VIEWING ANGLE: WiFi video doorbell has a 76 degree viewing angle, which can cover a large area and enable a clear view of the situation outside the door. 3、NIGHT VISION FUNCTION: 850nm infrared fill light can provide effective night monitoring, even in dark environment, you can see the situation outside the door. 4、HD VIDEO: Through the video coding standard MJEPG, the resolution is up to VGA 640x480 and the video frame rate is 20fps, which ensures clear and smooth video images. 5、TWO WAY VOICE INTERCOM: Video doorbell built in high sensitivity microphone and speaker, support two way voice intercom, people in different position can realize real time conversation. 6、MULTI USER SHARING: Two way voice intercom doorbell supports up to 9 people to share the use, support 1 person to watch the situation outside the door online. Item Type: Wireless Video Doorbell Material: ABS Viewing Angle: 76 Degrees Night Vision: 850nm Infrared Fill Light, Effective Distance 1m Video: Video Coding Standard MJEPG Resolution: VGA, 640x480 Video Frame Rate: VGA and 20fps Sound: Input High Sensitivity Microphone Output: Built in Speaker Intercom: Two Way Voice Intercom with Sound Feedback Cancellation Sound Coding Standard and Bit Rate: G711.A, 64Kbps Network Protocol: TCP/IP, HTTP, TCP, UDP, DHCP, DNS, P2P, Etc. Wireless Network: 802.11b/g/n Storage: Cloud Storage, Default Gift Three Days Rolling Storage App: Core Smart Home (for XSmartHome) Number of Online Users: Maximum Support for Sharing 9 People to Use, Simultaneous Online Viewing 1 Person Doorbell Battery Type: Built in 800mAh Lithium Battery Call Push Notification: Support (about 5s) Infrared Light Control: Automatic, Adjustable Sensitivity Level 1 x Doorbell 1 x Ding Dong Machine 1 x Data Cable 1 x Patch 1 x Instruction Manual 2 x Screws 2 x Screw Sleeves 1 x Card Pin