Model helicopters have been using them for some years now.
Yes but they serve a purpose and model helicopters aren't cheap.
I meant more as a pointless add-on like phones having two cameras, accelerometers, media player capabilities, etc etc.
Model helicopters have been using them for some years now.
Yes but they serve a purpose and model helicopters aren't cheap.
I meant more as a pointless add-on like phones having two cameras, accelerometers, media player capabilities, etc etc.