A cold shoe expansion interface is reserved, which can be used to expand fill light, microphone, etc., so that the creation can have . The cage has a flip-up structure design at the battery compartment. Once the cover is flipped, the flip cover can be opened for battery replacement, which is convenient and fast. The flip cover is fixed with a buckle, which can be disassembled and assembled with a push and a pull. The operation is simple and the firmness is greatly improved. When horizontally, the quick-release accessories are directly fixed on the Action5 Pro/4/3 through the opening reserved at the bottom of the cage; when vertically, the quick-release accessories are fixed on the side of the cage-free. The cage-free matching 5 Pro/4/3 lens silicone protective cover allows the camera to be stored in idle time to avoid bumps and scratches. Openings are reserved at the bottom of the cage and the USB cover, and original quick-release accessories such as audio charging adapters can be installed seamlessly. Material: Aluminum Alloy Color: As shown Light or display is different, the real color difference Package Contents: 1 x Camera Frame Case 1 x Lens protection cover Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.