Apparently only the immersionRC race wand will unlock the other power settings. I don't want to pay as much postage as the vtx itself from USA. £40 is to steep. Anyway there is a few vtx out now with smart audio. Once that breaks if it breaks I will try the Matek-hv. I already got a TBS Unify Pro nano but it's a smart audio lite version 1.7 & only runs on the 25mw. Can't complain as its the size of a postage stamp & get the range I need @ my park & around my gaff.