This system does not record, it merely sends audio and video remotely to its receiver. You can connect the receiver to a TV or a DVR/VCR type device. There are a few micro SD card DVRs that you can purchase to connect to it, but stand alone this does not have a record function.
This isn't quite the camera I purchased but, I use my mini cameras with this 12v battery pack.( DC 12V Portable 9800mAh Li-ion Super Rechargeable Battery Pack ) and am very happy with the results. It operates the camera all day. It can operate from 9 to 12 volts successfully.
It's very simple, you connect the wires where they correspond, turn on t.v. to the video/ game channel. turn tuning dial till you see the picture or what the camera should be picking up. I do not recommend using the camera with a 9v battery, it will not last long. Adjust antenna (on receiver) if needed.