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.
It's widely expected that Apple will introduce a dual lens camera for the 5.5-inch iPhone; however, it's unclear if the company will unveil both an iPhone 7 Plus and iPhone 7 Pro.
Finally, the leaked shell once again shows us a new simplified antenna band design.
Apple will likely unveil its next generation iPhone in September. Until then, you can follow iClarified on Twitter, Facebook, Google+, or RSS for updates.