Casio PT-1

Keyboard: 29 mini keys. Polyphony: Monophonic (only one note can be played at a time). Preset Sounds (Tones): 4 distinct sounds Piano Fantasy Violin Flute Rhythm Section: 10 built-in analog drum patterns, including March, Waltz, Swing, Bossa Nova, Samba, and Beguine. Sequencer: A simple record/play function that allows you to record a melody and play it back, which is also useful for manually triggering fast "sequenced" solos by repeatedly pressing buttons. Connectivity & Hardware: Built-in speaker 1.5mm headphone/output jack (useful for hooking up to an external mixer or amplifier) Tuning knob to manually adjust pitch Power Options: Can be powered by 4 AA batteries or a DC 6V power adapter.