Speculations over Airpods is over. So, iPhone 7 will not have 3.5mm headphone port. The airpod can be either used via Bluetooth connection or via lightning connecter. Reduction of headphone port will make the iPhone slimmer and perhaps more watertight.
Apple acquired Beats Electronics and since them many small upgradations are done by apple in earpods. Now, it is coming up with Airpods. The design is expected to be similar to Motorola Hint and Bragi. The earbuds also would probably contain different sized gels so that you can suit all customers better, and may have a couple of buttons for activating Siri and taking calls.
Interestingly, the rumored wireless Apple/Beats earbuds may have no interfaces for charging. Unlike the existing wireless Beats, which includes a mini-USB interface, the earphones that are newest will most probably come using a case that also can function as a battery that is rechargeable when not in use, to charge up the device. Without utilizing the case, reports say it'll possess a sub-4-hour battery life. The entire hardware continues to be in the procedure for growth.
In October 2015, Apple filed the "AirPods" logo therefore any new earphone product produced by the combined companies will probably carry that name.