61 note Casio CTK 720 electronic keyboard...
Keys: 61 standard‑size keys (5 octaves).
Polyphony: 32 notes
Tones: 242 total – 113 panel tones + 128 General MIDI tones + 1 drum set.
Rhythms: 100 rhythm patterns with auto accompaniment (CASIO CHORD and FINGERED modes).
Songs: 100 built‑in tunes (Song Bank 50 + Piano Bank 50) with 3‑step lesson and scoring/evaluation mode.
Transpose: 25 steps, from −12 to +12 semitones.
Tuning: Adjustable around A4 ≈ 440 Hz (±50 cents)
Display: Backlit LCD showing tone/rhythm/song names or numbers, tempo, chord name/form, fingering indicators, staff, and symbols.
Tempo range: From 40 to 255, adjustable in 216 steps.
Volume: Separate main and accompaniment/song volumes (0
Ports: USB (Type B) for MIDI, sustain pedal jack, stereo headphones/output, microphone input with its own volume control.
Speakers: Built‑in, 2.0 W + 2.0 W output
Dimensions: About 95.6 × 35.6 × 13.3 cm (37‑11/16" × 14‑1/16" × 5‑1/4").
Weight: Approximately 4.0 kg (8.8 lb) without batteries.