Round good functionality, which I have the actual possible range has not yet been tested. The only point that bothers a little is the fact that the receiver can be mounted on most camera flash shoes comfortable, but not at Sony's own system. As a small plastic adapter would be nice to avoid the dangling of the receiving module. The enclosed as an extra item for anyway necessary adapter cable, and I would be completely happy, even if that adapter would then possibly 1 or 2 Euros more expensive. Well, you can not always have everything, I guess, especially no product manager thinks along ... Now I let the thing just dangle or craft it very professionally with Velcro or rubber band.