Nikon 4794 SU-800 Wireless Speedlight Description Nikon’s compact, portable wireless commander unleashes the full potential of Nikon’s Creative Lighting System. Features: Functions as a wireless commander for the SB-R200, SB-900, SB-800, SB-700 and SB-600 Speedlight units Supports the Nikon Creative Lighting System (CLS) and compatible CLS cameras Offers 4 independent channels for competitive shooting environments Country of Origin:Japan Product Details: Brand: Nikon Compatible Mountings: Nikon Included Components: Accessory Has Self-Timer: No Product Dimensions: 10 x 10 x 10 inches Item Weight: 9.1 ounces Item model number: 4794 Is Discontinued By Manufacturer: No Date First Available: October 2, 2001 Manufacturer: Nikon