YONGNUO YN622N-KIT Wireless i-TTL Flash Trigger Kit with LED Screen for Nikon including 1X YN622N-TX Controller and 1X YN622 N Transceiver Supporting mixed use of the A/B/C three groups of flashes with i-TTL, Manual flash, or Super sync flash mode High-speed Synchronous up to 1/8000s and Remote Control Function Support simulate (modeling) flash, red-eye reduction flash Support the flash zooming (auto) and exposure compensation, flash value lock function(FVL) Support the basic flash trigger (max sync speed is 1/250s) of standard hot shoe (non Nikon body)