Los he usado en puros dispositivos apple y sí, siempre se conectan pero a veces hay que hacer muchas maniobras para ello; apagar, encender, "olvidar dispositivo", volver a sincronizar, etc. I am pleasantly surprised how comfortable these sandals are. If that makes a difference, I dont know. They came in a clear ziplock style plastic bag in a cardboard holder that looks like it would be normally inside the box your phone came in, if they still sent headphones with phones. Broken right out of the package. Super cute AND comfortable! Thing was a bit stiff on the head but started to loosen up. It does get windy here but nothing blows off. After a month of almost daily use they appear to be holding up very well. Ive been looking for sandals like these for awhile.