Ulanzi U Rig Pro Video Device for iPhone, Cell Phone Stabilizer Device with Triple Cold Shoe Mount, Cell Phone Tripod Mount for Phone Movie Production1. The Pro version is stronger, more comfortable, has a more compact design and is much stronger than the old version. The newly designed handle grip is also very comfortable.2. 3 cold shoe mounts and 4 1/4"-20 tripod threads with the pro version, you can mount 2 LED lights and video microphones at the same time, three cold shoe mounts and twp 1/4"-20 tripod thread tip . One 1/4"-20 tripod thread on the right side for vertical mounting, or a 1/4"-20 tripod thread on the bottom for mounting on any tripod.3. Safer and more stable Pro version with spring clip and safety screw lock, more secure than the old version, compact design, more stable than the old version.Ulanzi U-Rig Pro smartphone video rig.Newly designed, patented product by Ulanzi. It's a must-have accessory for anyone looking to sharpen their filmmaking skills with a phone that captures better images than many high-end cameras. You can mount the Rig on any tripod, but if you're using a handheld device, it allows you to capture relatively smooth footage.What's in the box?1*Smartphone video equipment