A:AnswerI have this item. I'm sure mini just is comparing it to the 'standard' plug size used by such things as larger headphones. Some headphones have a similar looking jack, but they are larger and can not fit into say the small input hole of an iPhone, etc. So mini = 3.5 mm in my opinion. THIS cable will fit into an iPhone headphone jack to give you a better point of reference.
A:AnswerTHE AUDIO IS CLEAR AND AS LOUD AS YOU WOULD LIKE WITH THESE AUDIO CABLE EXTENSIONS. I USE THE CABLE EXTENSIONS FOR THE SAME REASON YOUR MOTHER WANTS TO USE THEM.
A:AnswerYes! It Works Great! I bought it for the same reason needed to extend Beats by Dre headphones from t.v. to hear my game play on the Nintendo Switch and PS4. Exactly what your looking for great price and great sound.
A:AnswerOk so this cord is for use if you have RCA jacks & the device your wanting to use does NOT take that type, so this takes your RCA Jack's & converts it to the 3.5 mm. This is best I can tell ya