Buy on Amazon : http://www.amazon.com/gp/product/B008OI41BO?tag=catfoodrevi0a-20 <br /> <br />ProMaster 1443 2.4 GHZ Remote Flash Trigger <br /> <br />Does not require line-of-sight alignment <br />Functions as a wireless shutter release <br />Up to 100 meters328 feet range
