"It turns out Apple isn’t using some Bluetooth-like wireless technology, as rumors suggested, but rather Bluetooth itself.Apple’s AirPods do use Bluetooth and they don’t require an iPhone 7 - Recode
The company has added some special software sauce to enable the earbuds to automatically pair with a phone and stay connected. It then takes things a step further and also registers the earbuds over iCloud with iPads, Apple Watches and Macs. (All need to be running the latest operating system.)
Apple has also crammed two microphones inside, as well as accelerometers to detect when the earphones are in. If both are in and you pull one out, the music or movie you are listening to pauses. Pop it back in and the audio resumes."
Thursday, September 08, 2016
Apple’s AirPods do use Bluetooth and they don’t require an iPhone 7 - Recode
Check this Apple page for more details