Viltrox OC-E3 E-TTL Off Camera Shoe Cord with Safe Lock for Canon DSLR Camera Flash 150cm This TTL off-camera shoe cord is a very useful photography accessory to connect speedlite and DSLR camera. It gives you full off camera dedication between your camera and flash. One end of the cord plugs into the hotshoe of the camera, and the other has a hotshoe connection for the flash. The shoe cord is compatible with Canon cameras. It is designed to assist photographers in more efficiently lighting their subjects.