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Yongnuo 1 x YN-622N-TX 2 x YN-622N RX i-TTL LCD Wireless Flash Controller Wireless Flash
LCD screen display multi-buttons quick operationThe firmware can be upgraded through the USB interface
Support wireless shutter release functionThe focal lengthzoomof the ABC three groups of flash can be adjusted separately
Grouping flash mode i-TTLManual flashSuper sync
Supporting mixed use of the ABC three groups of flashes with i-TTL Manual flash or Super sync flash mode
Shutter Sync first curtain sync second curtain sync and FP high-speed sync the highest sync speed is 18000s