CTK-1550K2 (SP)

Keyboard - 61 piano-style keys
Maximum Polyphony - 32
Tones - 120 built-in tones
Rhythms/Patterns - 70 built-in rhythms, 50 Dance Music rhythms
Auto Accompaniment - Modes: CASIO Chord, Fingered 1, Fingered 2 (6th off), Fingered 3 (on bass), Full Range Chord
Controllers: Start/Stop, Synchro/Fill-in
Built-in Songs - 100 (Song Bank)
Lesson Function - Lesson Lite
Lesson Part Select (Right hand, Left hand, Both hands)
Repeat
Performance Evaluation
Voice Fingering Guide
Other Functions - Dance Music Mode
Rhythm/ Song Bank controller
Key Transpose - ±1 octave (-12 to 0 to +12 semitones)
Tuning Control - A4 = 415.5 to 465.9 Hz (Initial Default: 440.0 Hz)
Speakers - 10cm x 2
Amp Output - 2W?2W
Input/Output Terminals - Headphones/output (standard stereo jack)
External power (9.5V DC)
Power Requirements - Batteries: AA-size x 6/Optional AC adaptor: AD-E95100L
Dimensions (W x D x H) - 946 x 307 x 92mm
Excluding music stand, and other projections
Weight - 3.3kg (Excluding batteries)
Included Accessories - Music Stand