Anker, AirPods and the Physics of Bluetooth

This is a hands-on product review of the Anker “SoundBuds Sport IE 20” Bluetooth earphones and a hands-off bashing of the design of upcoming Apple AirPods. The $30 cost of the Ankers was an experiment, which turned into a rather useful purchase to accompany my iPhone.  I explain why physics is the limiting factor to the performance of these products. …