FUVISION Mini Security Camera - 1080P HD Wireless Surveillance Camera with Motion Detection, 90 Min Battery & 24/7 Loop Recording - Portable Nanny Cam for Home, Office, Baby Monitor & Indoor Security (No WiFi Needed)

The instructions are surprisingly good for these products because usually, the instructions are written by a kindergarten drop-out.I just got this item handed to me by the delivery guy and right away I was able to record videos and played it back on my computer and phone.Set once: slide the switch to either HD ( lower res ) or FHD ( higher res ). slide the other switch to either REC ( continuous record like a body cam ) or MD ( motion detect ).From off, for each use: just hold down the one button and count to three. Now let go. It starts recording.-- OR!! --From off, for each use: just plug in a battery bank or phone charger and it starts recording automatically. Unplug the charger and it stops recording. That is extremely easy. This method works just like a dash-cam in a car. In fact, you **could** use this as a dash-cam. But in the heat of the sun, the battery will melt your car. So, in reality, you'd have to wire a supercapacitor in place of the tiny battery.So, far my experience is that, this records a narrow view; this records audio, but low.Note that the instructions tell you to format your micro sd card to FAT. No need. Just put it in and the camera does what it needs automatically. I put in an sd card that I had used in a ___LINUX system____ it was formatted for linux. The camera formatted it automatically. I also had a sd card from another camera, still this cam erased everything and set up the card for itself. No need to do anything to prepare the sd card.The battery gets very hot during charge and hot immediately. The battery has only two wires connecting to the main circuit board. This means there is no temperature sensor. This also means the battery might not properly charge. For sure, charging will not be optimal; for sure charging will be dangerous if the battery is already hot; for sure the battery will not last.I do not plan on using this as intended.I plan to swap out the tiny lithium ion battery with a tiny super capacitor. I plan to either use it with a usb battery bank. And since it is already so tiny, I could put both the camera and the battery bank in my pocket.OR I might simply take out the battery and directly wire it to an 18650 lithium cell. Of course, that will make the tiny camera huge by comparison. But I am not concern about walking around with a hidden camera. Instead, I will proudly stick it out so that people will see my gadget.