More from Amazon.com : http://www.amazon.com/gp/product/B00FF2SNM0?tag=purrfectcatdi-20 <br /> <br />NEEWER FT-16 16 Channel Wireless Power-Control Trigger (Transmitter Receiver Set) for Canon <br /> <br />The wireless power control flash trigger FT-16 is designed for versatile use <br />The trigger set consists of a transmitter on camera and a receiver on-flash <br />Remote control lamp and focus lamp and a buzzer switch <br />Easy to install and use the camera control in hot shoe on demand <br />Set power ratios of up to 16 groups of remote flashes
