The Nikon SC-29 Coiled Remote Cord provides full TTL control for Nikon Speedlights when used off camera with Nikon D-SLRs that utilize a TTL hot shoe. One end slips into the D-SLR’s hot shoe, and the Speedlight attaches to the other end when the Speedlight is used off-camera or on a bracket. The SC-29 is approx. 9-ft in length and coiled and features a built-in AF-Assist Illuminator.