The good, bad, and ugly side of the Vivitar 4K Dual Screen Action Cam as purchased at Walmart. The DVR922 was pretty cheap, I bought mine for $39.99 CDN (however I also spent this amount on a 128GB Micro SD/TF card, but more on this later). As an action camera it can take 4K video at 30 frames per second. The camera comes with more accessories than are marketed on the front of the case. Thankfully one of those accessories is a USB cable that can be used to connect the camera to the computer. Once connected the camera can be used as a USB drive, as a web cam (see details in bad section), or to charge the battery. The battery for the DVR922 is removable, but there's more bad news in the bad section. It's worth mentioning that I tested the DVR922 under Xubuntu Linux, so Vivitar gets points for not using some proprietary protocol to lock the camera to particular operating systems.