Here is a cable cam system that lets you capture impossible shots with your smartphone, action cam, and mirrorless cameras up to 3.3lb. The Wiral LITE can be set up in a couple of minutes. Simply attach, tighten, and mount. You can use it for film production or capturing fast moving action.
With Wiral LITE, you can capture shots in narrow places. You can control the speed up to 28mph. When you are done, you can fit the entire system in your backpack.[where to get it]