Works perfectly but...
Yes the Tpcast works perfectly, but only after flashing the box...
In spite of a 400 euro device, this one doesn't work properly (no microphone, loss of signal...) but I was aware of this before I bought it, I had to pay another 25 dollars to fully enjoy this toy, because yes, once it's working what a foot, no more cable, freedom!
Tpcast's answer to this problem? Wait for the Tpcast Plus, no update planned...
My advice? Take it, flash it. The Tpcast plus will have a battery on the helmet, so it will be uncomfortable. If you are not afraid of the road...