So you would like to take your smartphone videos to the next level? The SmallRig Fold P10 Phone Cage can help. It comes with a bunch threaded mounting holes and 3 x cold shoe mounts for your microphones, lights, and other gear. It has an adjustable clamp that can handle mobile phones from 63mm to 98mm.
This smartphone video cage has foldable silicone handles to give you a comfortable grip. You can switch from horizontal to vertical shooting in a flash.