You first plug the camera to your PC (using the supplied cable) and create your account. THEN you move the camera to a location that may or may not be near an A/C plug. IF the cable is not long enough you MAY use an extension chord to make the connection. AFTER that, the camera uploads its data through WI-FI. Electrical power is required for various purposes such as ZOOMING IN, Speaker ON/OFF, Microphone ON/OFF, Night Vision ON/OFF etc. That's it.