“Brian you're guessing about AirPods+ and the battery case being a SiriOS hub" Yep—a guess: "The case includes its own wireless radio that can wirelessly communicate audio to the wireless earbuds. The case includes an input port to receive audio signals” http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&p=1&u=/netahtml/PTO/srchnum.html&r=1&f=G&l=50&d=PALL&s1=9949015.PN.&OS=&RS= …pic.twitter.com/Sgnlt9Rhlc