YONGNUO YN-560 III Bundle With RF-603 Single Transceiver for Canon Adopted by global users trust the allways RF-602/RF-603 wireless flash system. Support 2.4G ultra-long-range wireless flash, the lead flashing distances up to 100 meters above. Same YN560-III can accept RF-603 and RF-602 wireless transmitter emits a signal, supports 16 channels, wireless flash easily. The YN560-III is equipped with large-size LCD screen, easy clear, intuitive view or set the flash of the function, and easy to use.