
With sales just shy of 400 million, Apple's AirPods are the world's most popular headphones. They've sold about the same number of units as the Rubik's Cube (the world's most popular toy). What makes this more impressive is that a) the Rubik's Cube has been on sale for over 40 years, whereas the AirPods only launched in 2016 b) even the cheapest pair of AirPods costs about 10 times as much as a Rubik's Cube, and c) the AirPods sales figures only go up to 2022.
Staggering.