Quick demo of the response at close range of the RF-602 wireless flash radio system. Here I have 5 receivers all operating on the same channel, being 'fired' by the transmitter. You can see them all sync by the LED lights flashing.
I've been using these for almost 2 years now and apart from a battery fail, which doesn't happen very often, they have worked 100% of the time with no misfires.
I'm tempted to buy in to the new Yongnuo systems but really don't see the point whilst these are working so well.
If Pocket Wizards are out of your price range, these or their newer alternatives are what you need to buy, without hesitation.
![](https://i.ytimg.com/vi/rQfpzn3pZdg/maxresdefault.jpg)