A:AnswerRefurbished items work just as brand new! I believe the only difference is the fact that buying refurbished means you’re not the first owner of that specific item. I’ve had plenty of refurbished items by Apple, and every thing I’ve had has been amazing quality and works amazing.
A:AnswerHigh - I’ve had 2 pairs come that were still associated to an Apple ID. The second pair didn’t even look like they tried at all to verify the product’s condition since it had the wrong connection cord included with a twist tie from a trash bag.