Portable CD players are compact devices designed to play audio CDs on the go. They typically feature a lightweight design, making them easy to carry in a bag or backpack. Most models come with a headphone jack, allowing users to listen privately, and some include built-in speakers for shared listening experiences. Many portable CD players also offer additional features such as anti-skip protection, which helps prevent interruptions during playback, and the ability to play MP3 CDs. While digital music has become more popular, portable CD players remain a nostalgic choice for those who enjoy physical media.