A. This is a shooting auxiliary device specially designed for sports and outdoor scenarios. It is a chest-mounted phone holder and can also be used as a chest strap holder for action cameras. B. In terms of design, its cleverness lies in its ability to firmly fix the phone or action camera on the chest, bringing a unique perspective to shooting. Whether you are fishing, intently watching the float waiting for a fish to bite, or engaging in other outdoor activities, it allows you to easily achieve first-person perspective shooting. C. For those who love outdoor live streaming, this holder is a good assistant. With it, viewers can follow your perspective and experience the excitement of the outdoors as if they were there. The first-person perspective live streaming footage can bring a more real and intuitive experience to viewers, greatly enhancing the attractiveness and immersion of the live stream. D. It enables you to easily record every wonderful moment in various outdoor activities, adding endless possibilities to your shooting and live streaming.