System Mode: Digital FSK 2.4GHz
Distance Range: Up to 100m
Wireless Channel: 15 Fixed Channels and 1 Auto Channel.
Receiver: Output support TTL, Hot shoe and connecting cable socket
Transmitter: Transmitter 300Hrs(AA 1.2V 2400mAH rechargeable battery)
Receiver: Receiver 200Hrs(AA 1.2V 2400mAH rechargeable battery)
Flash Mode: E-TTL,TTL,M (For Canon)
Support Mixed Mode Output (Such as, TTL Mode in Group A, M Mode in Group B).
Support different EV addition/subtraction of each TTL group setting.
Support Output Light Ratio.
Sync Mode: 1st Curtain, 2nd Curtain, High Speed Sync, Red-eye reduction
Group Control: 3 different groups
Function: Supports flash zooming, focal length, ISO, shutter speed, FV lock and FP
Sync Speed: 1/8000S
Compatible Flash: Flashgun, Studio light and outdoor light
Firmware Support: Support upgrade the device online