what is the difference between these different types of remote control cars at toy stores?

I have a 8 year old son. I use to be into radio control cars, the kind that you would get from a Hobby Shop. But I want to buy something for my son that would be fast but not hobby shop expensive. How do the ratings work with mhz and battery voltage as far as speed?
Doesn’t voltage on the battery effect that as well?

the bigger the mhz number the longer the battery lasts and the more power you will get

One Response to “what is the difference between these different types of remote control cars at toy stores?”

  1. rottn30 Says:

    the bigger the mhz number the longer the battery lasts and the more power you will get
    References :

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