Puck button integration with android device.

I was getting some data on Android side which I assumed needed decoding.

Since I'm now advertising using NRF.setAdvertising({

1. I just want to understand now how it works, does setAdvertising
   advertises data just once?
   
2. I think that when this data is advertised, it tags along with
   bluetooth info, i.e. when Android side code will get Puck bluetooth
   info, it will get access to this data too.
   
   

So currently I do not have paired button and am accessing bluetooth info of Puck in Android code, I get some data in array but not sure how to interpret it.

Regards,