I have have this item for almost 5 month and have have no major cause of wear and tear . it be work perfectly . pro : it be a very useful device for iPhone\/MacBook 's most recent generation . it do exactly what a normal iPhone headphone do , but with the add benefit of use it on any headphone . con : I replace my iPhone with a Samsung Galaxy Nexus and it do not work on the phone . it be really disappointing , but that be the difference between how Samsung and Apple make they headphone jack .