http://www.techradar.com/news/apple-airpods-2-release-date-news-and-features

Announced alongside the removal of the headphone jack from the iPhone 7, the Apple AirPods declared out and out war on wires, removing it not only between the earbuds and the phone, but also between the earbuds themselves. 

Apple didn’t invent this ‘true wireless’ form-factor, but, in typical Apple fashion, the company’s entry into the area has prompted a flurry of interest from other headphone brands.