This 2.4 GHz X wireless system is compatible with Nikon cameras and flashes that support i-TTL for automatic exposure and metering, making it an excellent choice for shooters who need to work quickly. It also has an outstanding range of 328′ and can be set to one of 32 channels for limiting interference with other nearby systems. Another huge benefit is the ability to control up to five groups at a time, or set the unit to ratio flash mode for three groups with varying power relative to one another.Specifications

• 5 GR group modes and 3 ratio grouping mode
• Fully support i-TTL, 1/8000s HSS, FEC, FEL and modeling flash
• 2.4G wireless transmission, operating distance can reach up to 100 meters
• Also support sync delay setting, wireless shutter release, zoom setting and memory function
• Compatible with Godox TT685 Speedlite and Godox X1R Receiver. (Not included)