Compatible with Canon/Nikon TTL USB firmware update available.
1/8000s High Speed Sync and 1/19000s Flash duration (t0.5) supporting 20 frames per seconed high-speed continuous shooting.
600Ws powerful output can be minimized to 1/256 with constant color temperature.
Built-in wireless receiver,MAX.300m trigger range,16 channels & 6 groups.
6000mAh big lithium battery, 450 flashes in full power output.