The Vintage Casio PT-100 Electronic Keyboard Synth Piano is a classic piece of musical equipment that offers 32 keys for creating various sounds. This black keyboard by Casio is designed as a synthesizer, allowing users to experiment with different tones and melodies. Perfect for musicians looking for a compact and portable option for their musical creations, the Casio PT-100 is a timeless piece that has been tested and confirmed to be in working condition, albeit without an AC adapter.