Yongnuo 4pcs Rf-605 LCD Wireless 2.4ghz Flash Trigger Transceivers for Canon Rebel T3 T2i T1i Xsi Xt Xti Xs Xsi T1i 5d III Ii 7d 60d Rf-603 Rf-602 Receive Speedlite Light Dslr Camera Compatible with RF-602, RF-603 and YN-560TX LCD display TX/RX/TRX multiple working ways A/B/C/D/E/F 6 groups (compatible with YN560-TX) Communication range up to 100M