They sell the product experience. Easily connects, looks nice and sounds nice. Every now and then they would throw some audiphileish numbers in the product description(like it updates 3 gazillion times per second) but it's never the central argument.
Apple products are always about the experience and they wouldn't hesitate to put higher end specs when matter and lower end specs when it doesn't and make nerds uncomfortable or even angry because it would miss-match their convention of GB per USD or Herz per Euro. This is the way it always was, most famously with iPhone where Apple doesn't disclose RAM or CPU frequency or battery capacity and all-knowing reviewers will angrily tell you that Apple sells 1000$ phone with 4GB of RAM and how ridiculous is this compared to, say Samsung where you get 12GB RAM for the same price.