The Ulanzi ST-10 Cold Shoe Smartphone Holder is a versatile mounting accessory for photographers and videographers using smartphones as camera monitors. It features a sturdy cold shoe connection that securely attaches to the hot shoe of any DSLR or camera, allowing for horizontal or vertical smartphone positioning for flexible monitoring. The holder includes two additional cold shoe connections for mounting accessories such as microphones or LED lights, increasing setup versatility. A 1/4-inch thread and an integrated flash/cold shoe at the bottom enable easy mounting on tripods, selfie sticks, or camera setups with angle adjustment options for precise tilt control without a ball head. The 360-degree swivel design supports shooting from multiple angles, including landscape and portrait orientations, ensuring adaptability for various filming scenarios. Made from durable materials, it offers reliable performance for both professional and hobby applications, with a standard color finish and compact dimensions for portability. This accessory optimizes device integration and is ideal for on-the-go content creation and studio applications.