3G/4G LTE Connection & Battery PoweredThis cellular security camera indoor only supports 3G/4G LTE connection and does not support wifi (Built-in SIM card, NO SLOT, Not replaceable). After using out the 300M test data, you need to charge the data in the UBOX app. This PTZ indoor camera equipped with a built-in 7800mAh rechargeable battery and does not require power cables or WiFi. It is so convenient that you can put it anywhere in your home. If the camera is activated 20-times a day and once for 20s,the entire battery can be used for about one month (depending on the actual activation times, the above is for reference only). 360° Coverage & 20M Color Night VisionThis PTZ cellular camera indoor has 355° pan and 100° tilt functions. By simply swiveling and tilting-almost no blind spots in the field of vision that the indoor security camera comprehensively protects your family's safety. Supports 4x digital zoom, making it easy to zoom in on important areas and better observe