After betraying microSD fans, Google decided to betray the 3.5mm headphone jack as well with their 2017 Pixel 2 smartphones, making it the most high profile Android phone without a headphone jack. With that, the need for a USB-C headphone adapter (DAC/amp) for anyone wanting to use their 3.5mm headphones became mordant 😉
So Google released one such adapter of their own, taking USB digital audio and converting it to analog. After initially pricing it higher than Apple’s Lightning adapter (SAD!), Google brought the price all the way down to $9 with free shipping to boot at their own store.