Minimize vibration during filming. Photograph inaccessible objects. Three shooting methods: single shooting, continuous shooting and video shooting. Adopt high-quality flexible wire core as guide line, high elastic metal contact sheet as switch, durable without deformation, metal plug, closely connected shutter line interface. The key adopts double layer design, the micro-convex structure is easier to press, the forward sliding and push-pull is easy to be in place, strong springback and the positioning is accurate. Key components, internal use of metal reed contacts, minimal contact resistance, high conductivity and wear resistance. Plugs all use metal copper needles as connectors, long service life. Shutter release line is 90cm length, lightweight, good stability, easy to carry. Recommended for night/product/advertising/stage shooting, commercial photography, etc.