While I have had this item for a long time, it was never used. Nikon SC-28 TTL Coiled Remote Cord Does not come with box or paperwork. Nikon SC-28 TTL Remote Cord provides complete TTL control for Nikon Speedlights when used off-camera with select Nikon DSLRs that employs TTL hot shoe. The cord is mounted to the camera's hot shoe and the opposite end attaches to the Speedlight mounted on a bracket.