Portable radios and CD players provide hours of listening enjoyment, whether on a long road trip or a lazy day at the beach. While both devices have been around for many years, there are still some differences in how they work and what features are available.

Portable radios are generally powered by batteries, while CD players usually plug into an electrical outlet. Portable radios can also pick up AM and FM radio signals, while CD players typically only play CDs. Some portable radios also have the ability to play digital files from a USB drive or other storage device.

Many …