Yongnuo RF-603C II Wireless Remote Flash Trigger C1 for Canon 60D 350D 450D 500D 550D 1000D

They're so good, but I would like them to turn it off if you're not using them because if you're not careful you're going to loose all your batteries charge.

Works well.

very good

didn't work with my canon 6D. worked fine on my friend's camera.

While I don't have my monolights (yet) to test how good these work on them yet, but they definitely work when tested on my speedlights. My only disappointment was thinking these would act as a wireless shutter -- they don't. You NEED to have one unit tethered to your camera (the cord is included).