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The Interfit Strobies iSync 4 Wireless Receiver has 4 radio channels, making it possible to work around other photographers without interfering with one another's lights. The radio works at a distance of up to 100' (30 m) using the iSync Radio Transmitter (not included), and can also be switched to being triggered by a flash. This receiver has a built-in standard thread for mounting the flash on a stand, a PC sync cord, PC sync socket and a mono jack converter to fit both large and small jack sync sockets for connecting to studio lighting. Long-life lithium batteries are included.