The Casio JD-6000 Secret Sender is a vintage PDA from the 90's that has been tested and confirmed to work. This PDA, part of the Casio JD-6000 series, offers a range of features including the ability to send messages, view the world clock, set alarms, perform calculations, and display a calendar. With a black and white LCD screen, this retro device provides a glimpse into the technology of the past while still offering functionality for everyday use.
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