The Sony is, ماشاء الله, clean, no sound, no heat, and it was opened only for cleaning. It has one Tera, and one controller works only by charging, and the second is sound in all aspects. The black one is the sound one, and the blue one, everything works in it, but it must be connected to the charger. My limit for the Sony is 550 riyals, and it is not negotiable, of course.