Benjamin Mayo at 9to5Mac reported that this could be the first time that removing the mute switch from the iPhone has been raised as a possibility.
The tech news site said that Apple has been removing the hardware feature from other iOS devices. 9to5Mac said, however, that this makes sense for products like iPads that are not primarily used for receiving phone calls or setting alarms.
The photos also suggest that the iPhone 7 could feature a Smart Connector, which could allow users to pair their phones with accessories like keyboards.
Apple did not immediately respond to CNBC's request for comment.