iPod shuffle (4th generation)

Apple put the buttons back. The third-generation shuffle had moved every control onto the headphone cable, which meant it only worked properly with Apple's own earphones and was widely disliked. The fourth generation returned to a square aluminum body with a clip and a physical control ring, added VoiceOver to read track names aloud, and cost $49 for 2GB. That was the end of the experiment. It stayed on sale almost unchanged for nearly seven years until Apple discontinued it in July 2017, and it is still the thing people buy secondhand when they want music on a run without carrying a phone.