The Apple iPod shuffle 4th Generation (PRODUCT) RED (2 GB) A1373 is a portable audio device that allows users to store and play MP3 music files. With a storage capacity of 2 GB, this device offers a compact and easy-to-use way to enjoy music on the go. The unit features a red color and connects to computers via USB 2.0. As part of the iPod product line from Apple, this model is a popular choice for those looking for a convenient and reliable MP3 player.