Starting from the very first Apple model appeared in 2007, iPhones just like other modern smartphones featured 3.5 mm headphone jack. However Apple’s next iPhone 7 might have no traditional jack. Instead, iPhone owners will have to use an all-in-one Lightning connector designed for charging, data and audio. Those who would like to use any headset other than the one that shipped with the device will have to use a special adapter. However the headphone market will be packed with Lightning models as soon as the new iPhone model appears though the leading companies such as Sony, Philips and Harman already have them. However in the beginning the prices are likely to be high and the choice will be quite narrow.
By the way, the idea of slimmer iPhone 7 is not new – Apple has been planning to remove the 3.5mm headphone jack in favor of an all-in-one Lightning connector since last year.