Watch out Yongnuo: a 3rd-party modular system for Canon RT is coming
The Shanny SN600SC is a flash that takes a plug-in module turning it into an slave for Canon’s radio transmission system.
Brand: Shanny
Attack of the lighting clones: Shanny SN600S
The Shanny SN600S is a Chinese flashgun that looks rather too much like a Canon 600EX.