The expansion frame can be quickly unlocked by pushing the switch, without tools, screwing or assembly, and can be quickly disassembled and installed. 

No, there is a protective pad inside the aluminum alloy where it contacts the camera body, and the expansion frame does not come into direct contact with the camera. 

The expansion frame has cold shoe, 1/4, Action interface, and gopro interface. It can be adapted to accessories with cold shoe interface such as fill light, microphone, etc., accessories with 1/4 interface such as tripod, selfie stick, etc., accessories with DJI Action quick release interface such as adapter accessories, neck bracket, shoulder strap bracket, etc., and various accessories with Gopro interface such as chest strap, head strap, helmet bracket, bicycle bracket, etc. The expansion frame needs to be installed directly on the Pocket3 camera, so the silicone protective cover cannot be used at the same time. If the body film is applied, the lock may not be closed. Support the use of the original protective case at the same time. 

No, the expansion frame is installed at the bottom of the camera, and there will be no interference with the gimbal and camera, and it will not affect stability. 

No, the TF card slot, joystick, and buttons are all opened to avoid them. They can be used normally when the expansion frame is installed. The bottom quick release interface can also be connected to the threaded handle or endurance handle normally