☑️ Indoor screen: 4.3 inch IPS 480*272
☑️ Imaging chip: 720P
☑️ Support PIR motion detection
☑️ External storage: Micro SD Card (Max. 32GB)
☑️ Wireless WIFI mode: 2.4G
☑️ Built-in lithium battery: 3500mAh
☑️ Support passive human infrared detection
☑️ Support two-way voice intercom
☑️ Suitable for door hole: diameter 14-35mm
☑️ Suitable for door thickness: 35-110mm
☑️ Day/Night switching: automatic switching of double filters
☑️ Support TUYA WIFI APP remote control
☑️ Optional function: Work with Amazon alexa/Google Assistant
