... Distance: 30m New WANSEN PT-04GY Wireless Flash Trigger for canon nikon Pentax Olympus camera Specifications:4 ... life: up to 20,000 times Compatible with:Canon SpeedLite 580EX II, 580EX, 550EX, 540EZ, 520EZ, 430EZ, ... 430EX, 430EX II, 420EX, 420EZ, 380EX;Nikon SpeedLite SB900, SB-800, SB-600, SB-28, SB-27 ... DF-340MZ, 2700;Other flash models with a trigger voltage of 12V or lower Package included:1 x ...