- Synchronous triggering of up to three flash units for even lighting ,- For cable connection ,- For connection to the camera´s synchronising contact - Connection: PC Plug ,- Contact: Flash Unit (Cable Contact) ,- Thread/Connection: 1/4 (6.4 mm) ,- Model: Flash Shoe ,- Number of Sockets: 3 ,- Swivel Range: 360 ° ,- Colour: Black ,- Line: Adapter 2 years legal warranty only