Seems a cool gadget.
Double the price on ThinkGeek.
External memory: compatible with SD/MMC card (max. 2GB)
Earphone jack: 3.5mm
System: compatible with Windows 2000/XP
Battery: built-in 450mAh lithium battery
Recharge battery via USB cable
Use like a normal cassette in a car cassette player or cassette player
Use as a stand alone MP3 Player
Repeat playback mode
7 button interface
Dimension: 2.5" x 4" x .45"
This MP3 player is built into a standard cassette tape, letting you use it as either a uniquely old-school-style MP3 player, or with any car cassette or cassette player to play your music. You will have no problems listening to hours of your favorite songs via the built-in SD card slot, and you can easily change to different songs if you have multiple SD Cards. If you are into retro style looks but with a new technology upgrade, this is a MP3 player worth adding to your gear.