Yongnuo Flash Speedlight Flashlight YN 560IV 2.4GHz for Nikon Canon Olympus Pentax Camera Support Wireless Transmitter RF-602 RF-603 YN560-TX with TARION Flash Diffuser It can be used as master unit, provides 3 independent groups with controlling ability to realize remote control the flash mode, flash output and focal length of the YN560 IV and YN560III. Supports wireless slave function, fully supports YN560-TX, RF-603(I/II),RF-602,wireless transmitter. Multiple trigger synchronous mode support. Settings save automatically, support custom settings (Fn) Any cameras with the standard hot-shoe. (Such as Canon, Nikon, Olympus, Pentax etc.) For Sony Camera, the users need to buy an extra Sony hot-shoe converter. The complimentary product flash diffuser is suitable for hot shoe flash.