Yongnuo YN560 IV Wireless Flash Speedlite +Pixel TF325 Hotshoe Adapter for Sony Alpha A900 A850 A750 A700 A550 A500 A380 A350 A330 A300 etc 1.YN560 iv flash+pixel TF325 is a perfect combination for Sony camera users,it can solve the hotshoe problem for them. 2.YN-560IV is 560III upgraded version,a Combination of YN-560 III and YN560-TX all functions 3.Yn560 iv Supports setting save automatically, custom settings ( fn ).It has built-in wireless trigger system, it can be a flash speedlite, but also a flash controller Transmitter. 4.Pixel TF325 hotshoe adapter Support Sony camera to use Yongnuo Canon, Nikon, Pentax, Panasonic, Samsung , flash with the standard hotshoe, but its not support TTL. 5.Pixel TF325 is available to connect flash or studio lights through PC socket.