Spotted by the Nowhereelse.fr, the shell is apparently one of two prototype designs for the iPhone 7 with the other having just one speaker and no headphone jack.
Additionally, the rear shell once again reveals a larger opening for the camera, corroborating rumors that Apple will be improving the camera on the next generation 4.7-inch iPhone.
Ha ha. I love the way people here talk as if they have a choice. They will anyways go out and buy the iPhone whether it comes with 3.5 mm jack or not. Even if apple offered it with black and white screen, you guys will still buy it. What will happen is you guys will lock yourselves in a sad little room for days and nights and cry your heart out and finally convince yourself you have to get the iPhone no matter what. And thats how Apple wins.
I will never buy this phone if it doesn't have a headphone jack. I'll get a new brand when I get to that point. I have a Bluetooth headphone and I have to charge it all the time and only last for so long .if I have a headphone plug then I don't have to charge it and I don't mind wearing headphones. I or if I have a headphone it requires batteries in with a heck of a lot longer than the Bluetooth ones. And they're always available. I think it's a stupid idea.
It could be that the right 2 holes on the left side speaker are for the microphone. Which is why they're maybe smaller. Or it just could be a scrap or test casing for case makers. Could be fake but undone think so. Don't assume it just because somethings off a bit.