Remember the iPod? The Discman? The Walkman? People who want an audio-only device have a few options, such as Mighty or Yoto. Or you can take an older iPhone or iPad and allow only music apps. If you have an existing digital music library, you can load it into the device since the storage isn’t being used for other apps. If you want to take it for a jog or drive, most music apps allow downloads for offline listening so no need to pay for cellular service. If it’s for children, add headphones if you don’t want to hear their music, and make sure you have turned on any parental controls in the services. (Yes, even music and audiobook apps have inappropriate content.)