The Nissin Air 10s Commander makes it possible to trigger NAS-compatible flash units and receivers from a distance of up to 328 feet. This wireless TTL commander is made for Nikon cameras with i-TTL support. Its 2.4 GHz radio transmission uses eight channels and eight groups for communication. The crossover TTL support allows you to use your camera with flash units intended for other brands. With Nissin Air 10s, you can adjust the flash power from 1/1 to 1/256 and zoom from 24 to 200mm. With the memory function, the last used TTL setting is recorded when you switch to the manual mode. The AF assist beam comes to your aid when working in low light. With the microSD card slot, you can update the firmware of the commander.