Most rumors talking about the iPhone 7 have mentioned that this year Apple is ditching the 3.5 mm headset jack for good. So at this point, after hearing this information from dozens of different sources, we're pretty much convinced it will happen. But, you may wonder, what will Apple do to keep its fans' anger in check? Well, apparently it all comes down to shipping a Lightning-to-3.5mm adapter in the box. When you buy one of the new iPhones, you also get the adapter. So if you have a pair of headphones that connect through that 3.5mm jack, you'll be able to continue using them. Such...
Source: http://www.gsmarena.com/apples_lightningto35mm_adapter_for_the_iphone_7_supposedly_surfaces_in_vietnam-news-19669.php