The Interfit I Sync 4 has 4 independent radio channels for use where multiple photographers may be using wireless triggers such as at a wedding etc. Now you can set the channel and still keep on shooting without interference from other photographers. Each receiver has a built in light stand tread on the bottom to allow your speedlite to be stand mounted. In addition a PC sync cable and socket is included along with a mono jack converter to fit both large and small jack sync sockets for connecting to studio lighting. Runs on long life lithium batteries (included).
One reason why the Interfit Photographic Strobies is popular is because of its Lightweight