A:AnswerI'd say I have a pretty normal sized head and mine are on the smallest setting, they go pretty big. The ear cups comfortably surround my ears, so I'd say they're also pretty big
A:AnswerOn iPhone, iPad and Mac you can listen to lossless audio with these headphones, but these headphones would require a lightning to headphones Jack, During the conversion of analog to digital the signal would degrade and would result in a loss of audio. So not recommended.
A:AnswerYes you can, ive had people tell me it sounds better/ more clear when I talk with these than when I talk with AirPods. I like these for talking on the phone at the grocery store because I can also activate noise cancelation and hear my phone call better
A:AnswerI got mine open box and they were actually in excellent condition. They didn't even look used but I'm sure who ever had them before me probably didn't keep them longer than a month. They've worked great for me I don't have any issues with mine. It could be because someone didn't' like the way they felt on their head or they just wanted to try them out and decided they rather go with something else. I do with you could know why someone returned them as well but the cheaper price is nice for a lightly used set(if they even used it).
A:Answerits the type of charger entry that they have, lightning refers to the older apple products (iPhone, AirPods, iPads) - so u would need that type of cable to charge then (lightning cable). the new apple products all have the usb c charger entry,
A:AnswerYes. The ear muff part pops out. I clean mine by soaking a rag with warm water and I add a really small amount of laundry detergent to the rag then wipe them down, they get pretty wet from the rag so I air dry them, I do this weekly (especially after the gym when I'm sweating in them).