Works fine. A handy case that fits both the stub and the camera. It is quite difficult to understand for an inexperienced user, although in general everything is quite logical. Has some pros: Expected more. But there are pluses - a convenient stub, battery capacity and charges the camera during operation. Has some cons: Connects only with gopro, so that the recording starts from the button on the handle of the stabilizer. Other action cameras should start recording with their regular buttons. It was quite difficult to correctly and most importantly mount the camera exactly horizontally.