Some little questions

Hi, I’m rly interessed to buy a hexy, but I have a few questions:

1)I read that there is a bluetooth controller integrated and some demo commands. Does this mean that there is the possibilty (from the beginning) to move the spider from the computer at bluethoot distance? (I mean basic moving commands, I’m a novice in this field)
2)What is the battery autonomy? Is there the possibility to extend it eventually, maybe adding more battery supports?
3)If some electronic parts get break, how can I replace them? Is there a support?
Thanks.