Xbox 360 S retail for parts, broken (don't know whats wrong)

Product Name: Xbox 360 S retail for parts, broken (don't know whats wrong)
Here i have an xbox 360 s for sale. Its "broken", as in i dont know its condition. I plugged it in and turned it on and when i insert a disc it registers a game/dvd in it, but i do not have any controllers to try and play something or navigate the menu. For this reason, im selling as a "for parts" xbox as i cannot verify it all works properly. It has no hard drive in it but it comes with a few games and retail movies.