Buy on Amazon : http://www.amazon.com/gp/product/B00QBXPCTY?tag=scratchandsti-20 <br /> <br />Neewer? NW622N FSK 2.4Ghz 7 Channel Wireless i-TTL High Speed Sync Flash Transceiver Trigger <br /> <br />System type Digital FSK 24GHz wireless transceiver <br />Support Flash mode i-TTL Manual flash Multi flash <br />Shutter Sync mode first curtain second curtain high speed sync HSSFP Max 18000s sync speed <br />Support flash exposure compensationFEC Flash exposure bracketingFEB flash exposure lockFE Lock <br />Support PC port triggering strobe flashes PC Sync cable is not included
