The R5's wifi is a bit flakey if you are too far away. It is probably to do with the antennae within the chassis. Much as I would like remote flash control within an external trigger, I am not sure it is possible without the antennae sticking out of the body somehow.yeah ok... but Wifi would work really nice!.... I can't understand why this isn't in the bodies already... especially in the R5 & R6! Also the 5DIV has Wifi!