YN560-TX Manual Flash Controller made specially for Yongnuo YN-560 III released since January 2013 but if you want to use it with other Yongnuo flash speedlite you just need the transceiver of Yongnuo RF-602 RF-603 RF-603 II because YN560-TX has built-in wireless trigger system. You can use it not only as flash controller function but also use it as remote control function. Supports all the YONGNUO YN560-III Flashes Released since January of 2013 Remote Control of Flash output and Zoom per group up to 6 groups A/B/C/D/E/F FSK 2.4G wireless controller Two Flash Modes: M/Multi Transmission Range: 100 Meters Zoom range: 24~105m Shutter Interface: 2.5mm shutter interface Compatible with YN-560 III RF-602 RF-603 RF-603 II 16 Channels Large and Clear Screen user friendly interface Battery Type: AA*2 Stand-by time: 120 hours Suit for: - Yongnuo YN-560 III released since January of 2013 - Yongnuo RF-602 transmitter RF-603 RF-603 II transceiver - Yongnuo YN-560 II YN-468 II YN-565EX YN-568EX in manual mode (You need to use RF-602 RF-603 RF-603 II together.) - ALL Canon Camera like 6D 5D3 60D 50D 40D 30D 600D 550D 500D 450D 400D 350D 300D 1100D 1000D 650D 5D2 5D Mark III.