[1/4” & 3/8” & ACRA SWICSS]: The base has added a multi interface design, with standard 3/8 inch and 1/4 inch threaded holes at the bottom, Acra swiss card slots on the side, and 1/4 inch threaded holes that are perfectly compatible with most devices. It can be connected to tripods, monopods, ball heads, extension poles, selfie sticks, magic arms, etc. Two Cold Shoe Extension: The Manbily cell phone tripod mount is equipped with 2 cold shoe mounts, which creates a platform to mount a microphone, camera LED light, or other devices This versatile metal mount adapter features dual phone holders, allowing you to securely grip two smartphones simultaneously It can install two mobile phones at the same time, and the V-shaped thick rubber pad can provide excellent scratch free and anti slip protection, which is very suitable for dual platform live streaming, video blogging, YouTube videos, TikTok, Facebook, Photography, Facetime, travel, etc. [DUAL PHONE CLIP DESIGN]: SP-12 adopts all metal CNC machining and high-quality aluminum alloy structure. Ulanzi Smartphone Tripod Mount 360 Holder A versatile photo studio kit with a dual camera phone mount, 360-degree rotating metal clamp, and 2 cold shoes for arca mobile and siss 360 setups [EXPANDABLE INTERFACE]: Both sides of the 2* phone clip are equipped with cold shoe mounts and 2* standard 1/4 inch threaded hole. The middle of the mount also has 2* standard 1/4 inch threaded hole, making it easy to connect various photography assistive devices, such as magic arms, fill lights, microphones, and other expandable devices. and can play a good role both outdoors and indoors. Phone Mount BigKing Dual Clips Phone Holder, Phone Holder Dual Sides Two Position, Dual Tripod Mount Adapter, Mini Desktop Tripod Phone Stand Mount With 1/4inch Screws For Video Live Streaming Dual Phone Tripod Mount [EXCELLENT COMPATIBILITY]: Strengthening the spring can securely lock the phone to prevent it from shaking and falling off.