Doesn't work, defective unit, probably that's why it's so cheap. Press the record button and the red light will flash once then nothing, put the recording in a loop and you can't stop it. Insert a new SD card of the specified format. Nothing, it says it's formatted but I don't think it actually does anything, put a used card into hit format and it said it's formatted, put a used formatted card into my linux computer, and all the original data was still on it. So I formatted the card on my Linux computer and put it back in the camera, no. It seems that this camera only has menus that do nothing, or the firmware is incomplete. I probably got a bad one, but I have a feeling these cameras are probably junk that hasn't been factory tested.