iPhones and iPads

News and Help articles for the iPhone and iPad

What is the pin hole on top of the iphone 4 used for?

Have you ever notice that tiny little pin hole on top of the iphone 4 beside the earphone jack and wandered what it was and what it is used for? Well the answer is very simple actually. It is used to reduce noise when on the phone. How it works I am not quite sure of, but that is its purpose…Now you know!

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