Only For Insta360 ONE X4: SmallRig 4278 is designed for Insta360 X4 action camera while maintaining access to camera's lens port, controls, and battery slot. | Tool-Free Installation: The camera is placed into the cage from the top and tightened with a hand screw. It can be installed without the help of tools. | Easy Battery Replacement: The side of the cage is hollowed out, and the battery can be replaced without removing the cage, which is convenient and time-saving. The formfitting full-frame aluminum design protects your camera while adding multiple accessory mounting options. | Anti-Scratch Design: A silicone lens cover is included to protect the lens when stored and prevent the lens from being scratched; the cage fits the shape of the camera, and there are silicone gaskets on the inside to prevent scratches on the camera body. | Multiple Mounting Points: There is a cold shoe and a 1/4"-20 anti-deflection threaded hole on one side of the cage, which can be used to install accessories such as microphones and LED video lights. The action camera mount on the bottom can be folded to store, and there is also a 1/4"-20 threaded hole at the bottom, which can be directly connected to a 1/4"-20 screw tripod, Selfie Stick 4758, etc. | Compatible with Original Accessories: Flash Transmission Companion, Audio Adapter, Protective Mirror, Screen Protector