I ordered the CaDA battery box and remotes with the pretense that CaDA has a smart app and bluetooth products, expecting it to be bluetooth. I also noticed what looks to be a linear speed controller for a remote.
In actuality, it has no speed control, just on/off. I could've made that work, if the box was bluetooth, which it isn't. I could not find any information about what wireless protocol it's running; be it radio, IR, bluetooth, etc, so I couldn't write any kind of middle-man script to force it to have speed control.
It is still, in my opinion, better than Power Functions for being rechargeable and taking up much less space, hence why I gave it 2 stars instead of the much deserved 1.
Very disappointed with it. Please, spend your money on the far superior Mould King battery+remote. I will be passing these onto my younger cousins, I think they'll find more enjoyment with it than I!