YONGNUO Neueste PT-04 Flash Trigger Sync CTR-301P

Specification: 4 Channels Selectable Transmitter Power: 23A 12V batteryReceiver Power:CR2 Battery Maximum Working Distance: Transmitter >30m Reciver>10m(open area, without interference) Working Frequency: 433MHz Comes with PC sync port . Compatible Models: Canon SpeedLite 580EX II, 580EX, 540EZ, 520EZ, 430EZ, 430EX, 420EX, 420EZ, 380EX Nikon SpeedLite SB-800, SB-600, SB-28, SB-27, SB-26, SB-25, SB-24 Olympus FL-50, FL36 Pentax AF-540 FGZ, AF-360 FGZ, AF-400 FT, AF-240 FT Sigma EF-500 DG Super, EF-500 DG ST, EF-430 Sunpak Auto 2000DZ, 622 Pro, 433AF, 433D, 383, 355AFm 344D, 333D Vivitar 285HV (Older Vivitar 285/283 works only with PC sync)