Works great on my Panasonic Lumix GH2, not sure about 100M range as I don't have
a 100M tape measure;;)but it seems to be about that distance without any obstructions
when I've tried it up the woods, just have to make sure you push the jack plugs
in properly & the black end goes into the camera gray in to the remote receiver, don't
know why they don't work the other way round. Not had any luck attaching an external
flash to it, most likely because the external flashes I was using are quite old
ones made for film cameras, they work connected straight to my Panasonic Lumix GH2.
but to sum up, well worth the money::)