Only 1.1x0.4x1.1in(3x3x1.2 cm), 
HD 1080P, 940 nm invisible infrared light, night vision distance is up to 5 meters.
Supports up to 128G memory card; automatic night vision & motion detection & loop recording, and surveillance video can be done by plugged in a power outlet.

Upgraded night vision uses advanced IR LED lamps and 26FT night vision distance, allows you to clearly see  in low light even total darkness, and the IR lights are not visible when recording. 

2022 latest design mini portable camera for indoor/outdoor. It?s a small wifi camera with app. Once your phone is configured with router Wi-Fi (Only 2.4GHz). Then you can view live video on the App remotely from anywhere in the world.

There is no built-in battery, you just need to connect the mobile power supply, or USB socket