Features: Supported flash mode: i-TTL, manual flash. Shutter sync: front-curtain sync, rear-curtain sync, hi-speed sync(HSS/FP), the highest sync speed is 1/8000s. Support remote set the parameters of flash through the transceiver (remote control mode). Support i-TTL, manual, repeating flash mode mixed use. (mix control mode) Support the flash installed on transmitter(on-top flash) and supports i-TTL function. Support the use of master unit on transmitter sets the parameters of each group.(master control mode) Support FEC, FVL functions. Support modeling flash and red-eye reduction flash. Support flash zooming.(auto) Built-in AF assist beam emitter(AF lamp). Settings saved automatically. Compatible with Yongnuo / Nikon series flashes. Support PC port triggering strobe flashes. PC port support front/rear curtain sync and high speed sync(super sync) function. Support single-contact of camera flash triggering. (max sync speed is 1/250s) On compatible cameras/flash with TTL function. Com Discounted at only: US$ 90.5 
