Is the 13 MBP's audio jack both in/out?

Basically what the thread's topic is. Is the audio jack both in and out?

"ifixit.com" boldly states: "The addition of an SD card slot (and the omission of digital/mic port) is readily apparent."

Omission = completely left out or integrated into the audio in port?

Thanks!

 

yes,it is both in/out,like on iPhone

 

Great. I guess it will be a little tougher finding a good headset with the three ring connector like the iPhone's earbuds but companies product's revolve around Apple so much I wouldn't be surprised to see something soon that's a little more heavy duty than something you would use with an iPhone.

 

I want to know how they got that to work. How the heck does the jack know if you're plugging in headphones/speakers, or a mic?

 

Look at your earphones. You'll see two circular lines. Now look at earphones with a mic. There are three circular lines.

(I only found this out a few months ago myself haha)

 

Ah, so I would assume just a mic would be one circular line. Interesting. The simple obvious things that get overlooked some times.

 

Or mono audio!

 

Ok true, so I'd still like to know how the jack can know the difference.

 

Headphone and line-in ports are a single port; use System Preferences to switch the port's behavior between line-in and headphone. This port defaults to output.

 

Ah thanks! Cool little feature that is.

 

Nowadays, hardware can automatically sense which kind of device it is. E.g. headphones, microphone..etc I don't know how it works, but the capability is there.