Receiver for the strato ii multi 5 in 1 wireless trigger system for canon making a classic trigger better the phottix strato ii multi 5 in 1 wireless trigger system gives photographers incredible control over their flashes and studio lights four channels and four groups provide unparalleled control in the studio or on location the strato ii multi can be used as a wired or wireless shutter release the 24 ghz transmitter and receivers offer ranges of more than150 meters and sync at speeds