The Apple iPod shuffle (1st Gen), Apple's most affordable MP3 player at its introduction, featured 512 MB or 1.0 GB of flash memory in a small (3.3 x 0.98 x 0.33 inch) case that was "smaller than a pack of gum." It had an integrated USB connector but lacked a display.
As its name implies, the iPod shuffle was designed for "shuffle songs" mode, utilizing Apple's "AutoFill" feature in iTunes to load a user-directed or random selection of songs. Its navigation was handled by a simple control pad on the front and a slider on the back.
The iPod shuffle was designed to plug directly into a USB 1.1 or 2.0 port, with an optional dock also available. Its solid-state Flash Memory made it skip-free and could hold approximately 120 or 240 songs (on the 512 MB and 1.0 GB versions, respectively), as well as other file types for data transport.
Apple also released several compatible accessories, including a waterproof case and an armband, to complement the included lanyard.