The ARCA-Style Smartphone Clip Holder from CAVMATE can fit devices ranging from 2.3 to 3.2' wide. A rubber pad and thumbscrew on the interior help prevent your smartphone from falling out and shaking, while three cold shoe mounts let you attach accessories, including a microphone or LED light. If you need to connect this cage to a tripod or other compatible device, there is a 1/4'-20 and 3/8'-16 thread on the bottom, as well as a standard shoe mount.