Wireless system System mode: digital fsk 2.4ghz Distance range: more than 400m Wireless channel: 15 fixed channels and 1 auto channel Trigger mode Receiver: output support ttl, hot shoe and connecting cable socket Power Transmitter: transceiver 300hrs(aa 1.2v 2400mah rechargeable battery) Receiver::receiver 200hrs(aa 1.2v 2400mah rechargeable battery) Performance 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 Rikon standard color packing Weight:0.8kg Dimensions: 19.5cm*12.5cm*6.5cm
