• Functions as a Wireless Commander for SB-R200, SB-800 and SB-600 Speedlights units
• Supports the Nikon Creative Lighting System (CLS) and compatible CLS cameras
• Controls an unlimited number of Speedlights up to three groups
• Offers 4 independent channels for competitive shooting environments
• Provides wireless control up to 66 feet
• Built-in AF Assist Illuminator for critical focus in low light situations