I am looking at purchasing two of these YN-560 iii - http://flashhavoc.com/yongnuo-yn-560-iii-review/
But what I am wondering is, is this flash capable of triggering the second one using the 2.4GHz radio? Or do I still need a transmitter and receiver?
I have never used a flash before, but I want to start using a flash on the camera, and a secondary flash to up some backgrounds (no line of sight, so it cannot be an optical trigger).
Any one able to decipher what is on that website and tell me in n00b English what it says?