Now here’s one confused device – the USB Cassette MP3 Player. It looks like your regular ancient plastic cassette, and is sized the same, making it able to fit into your vehicle’s cassette deck (if you still have one, that is) for easy portability, although it features an SD memory card slot that holds all your songs in flash memory format. Files are easily transferred using drag-and-drop methodology from a computer, so its memory size is limited by the size of your SD memory card. If you love getting weird looks from people with this special MP3 player, then be prepared to fork out $22 for this puppy. All the relevant buttons to control audio playback and volume are lined up on one side of the device.