The iPod Shuffle is a portable music player developed by Apple Inc. It was first introduced in January 2005 and has undergone several updates since then. The device is known for its compact size and simple design, featuring a small square shape with a clip on the back for easy attachment to clothing. The iPod Shuffle does not have a screen but instead relies on a control pad located on the front of the device for navigation and playback control. It uses flash memory to store music files and can hold hundreds of songs depending on the storage capacity. The device supports various audio formats, including MP3, AAC, and WAV.