YONGNUO YN622 Series,Wireless Flash Trigger for Canon/Nikon camera
YN-622C
Yongnuo RF603 II Canon Transceiver 2.5mm Connection – JG Superstore
Amazon.com : YONGNUO Wireless Shutter Release & Flash Trigger RF-603II C3 for Canon DSLR 1D /1DS, EOS 5D Mark II/5D /7D/50D /40D /30D /20D /10D : Electronics
Yongnuo Rf-603 Ii C3 Radio Wireless Remote Flash Trigger For Canon 50d 40d 7d/7d Mark Ii/6d/6d Mark Ii/5d Mark Iv / Iii /ii 1ds - Shutter Release - AliExpress