The Wireless Flash Transceiver V5 Duo from Cactus is a 16 channel, 2-transceiver set that will trigger your flash or camera wirelessly at distances up to 328'. Each unit features a hot shoe foot and a female hot shoe for on- camera use with or without a flash mounted on it. A 1/4"-20 female thread on the underside of the transceiver allows mounting to a stand, clamp or other accessory, while the included mini-pin cable and phono plug adapters facilitate connection to remote devices. Sync speeds up to 1/1000 sec are possible with capable cameras.