USB Charger Hidden Spy Camera with Built in DVR. In this age of electronics, everyone has a variety of adapters and chargers plugged into nearly every electrical outlet. No one will even pay attention to the USB charger hidden camera with night vision. It records in crisp clear 1920x1080p resolution at 30fps on a 32GB micro SD card which will store up to 7 hours of footage. This covert USB adapter is great for office security or a nanny cam at home. It is very easy to use and will do Loop or Motion Activated recordings. Easily connects to your computer to download and view video footage.