Opteka TTL Off-Camera Flash Sync Cord for Sony Alpha SLR Cameras & Digital Flashes Ttl Off-Camera Flash Remote Control Provides Full Ttl Control For Nikon Speedlights When Used Off-Camera With Sony Cameras That Have Ttl Hot Flash Shoe It Allows Easy Use Of Flash When The Camera Is Mounted On A Console Compatible With Sony Brand & Sony Compatible Flashes Heavy-Duty Coiled Cable (Extends Up To 6.5 Feet)