What exactly is the W1? Can it work with an older MacBook, or would you need a not-yet-announced MacBook?
Are these even Bluetooth? Maybe they always remain connected to your iPhone, and the other devices stream to the iPhone first.
Connections AirPods: Bluetooth
And then further down Compatibility: iPhone 5 and up
iPhone 5 has Bluetooth 4.0 So I'm guessing the pairing information is shared via iCloud
Are these even Bluetooth? Maybe they always remain connected to your iPhone, and the other devices stream to the iPhone first.