Yongnuo RF-603 C1 Flash Trigger for Canon 60D 450D 400D 350D 300D 1100D 1000D 550D 600D 650D 700D 500D LF238 (Electronics)
Canon 550D Practical and perfect with battery autonomy and distance AAA + good product. I recommande.Plus of autonomy problem has a nicer price.
