Now android 6.0 TV Box is still mainstream models on the market, although Google already released Android 7.0 and Android 7.1 OS about half an year.
In order to provide newest and best android TV box for our customer, our engineers keep developing and testing in past few weeks in factory.
Finally, we have developed stable android 7.1 TV box, see screen shot as below:
We think android 7.1 OS device will be more popular than android andorid 6.0 in the near future.
If you want know more about the details, feel free to contact us, thanks.