System mode: FSK 2.4GHz radio system– Remote distance: 300m or above– Wireless channel: 15 fixed channels and 1 automatic channel– Support the powre zoom function– Support group control function– Support exposure lock– Support three flash groups output different power flash– Support ratio output function– Support front-curtain sync, rear-curtain sync, high-speed sync– Support manual setting on transmitter for group flash– Support high speed sync 1/8000s– Hotshoe on transmitter support output function– Support one transmitter to control several receivers– Support test flash function– Support USB function-LED Display Output at a glance– Flash Mode:TTL, TTL, M– Sync Mode: 1st Curtain, 2nd Curtain, Hi-speed Sync– Group Control: 3 Groups– Sync Speed: 1/8000S