[ No wiring and remote application operation ] The doorbell camera with a buzzer supports 2.4G WiFi, covering more areas of your home (does not support 5GHz WiFi). 100% wireless, easy to install anywhere you like. Aiwit can be downloaded from the and is compatible with iOS and Android. Provide online customer service for any issues you have through the Aiwit application. [ Clear bidirectional audio ] Equipped with a built-in microphone and speaker, it can automatically eliminate echoes, making the sound fuller and more stable. It can maintain clear calls even in noisy environments, and can be used for both chatting with visitors and warning unexpected guests. [HD clear infrared night vision] The combination of 1080P resolution and 166 ultra wide angle lens enables the to clearly record the movement of the front door without missing every key picture. It also has equally excellent performance in night vision mode. The doorbell supports 1 main account and 8 shared accounts, including multi user sharing and indoor ringtones. You can share your device with your family or friends in the application or through email or QR code. It also includes an indoor bell sound. When someone rings your , you will hear the doorbell ring when you go home. [ Intelligent and Portable ] The doorbell can be controlled through the APP, with automatic working mode and intelligent portability. Portable in size and weight, easy to install and disassemble size: 10.5 x 9 x 3.9cm Material: plastic colour: black Package Contents: 1 x Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.