Cowboystudio 16 Channel 3 in 1 Combo Receiver for Canon SLR Cameras, Compatible with  Canon 580EX 430EX Flash, Remote Trigger for Canon EOS Digital Rebel XT, XTi, XSi, XS, T1i, T2i , EOS 5D 7D 50D 40D 1D, and Monolight Wireless Receiver One (1) Receiver One (1) Release cable