| CASIO CTK-3500 (STANDARD) | 
| Number of Keys | 61 | 
| Touch Response | 2 sensitivity levels, off | 
| Maximum Polyphony | 48 | 
| Number of Tones | 400 | 
| Number of Rhythms/Patterns | 100 | 
| Automatic Accompaniment | Yes | 
| Built-in Songs | 60 | 
| Songs | Step Up Lesson, Scoring System, Voice Fingering Guide, Part Select (Right hand, Left hand, Both hands) | 
| Speaker | 10cm x 2 | 
| Amplifiers | 2W + 2W | 
| Power Supply | 2-way [Batteries] AA-size alkaline batteries x 6 Approximatery 12 hours [AC Adaptor] AD-E95100L (DC 9.5V) | 
| Power Consumption | 5.5W | 
| Dimensions | 946 x 307 x 92 mm (w/o music stand) | 
| Weight | 3.4 kg | 
| Color | Black | 
| Included Accessories | Music stand | 
| Effects | Virtal Hall Reverb (10 types) | 
| Transpose | -12 semitones ~ 0 ~ +12 semitones | 
| Tuning Control | A4 = 415.5 Hz ~ 440.0 Hz ~ 465.9 Hz | 
| One Touch Presets | Yes | 
| Metronome | 0 to 9 beats; tempo range: 20 to 255 | 
| LCD | Yes | 
| Pitch Bend Wheel | Yes | 
| Dance Music Mode | Yes | 
| Others | ・Auto Power Off | 
| USB port | Type B | 
| AUDIO IN | Stereo mini jack | 
| PEDAL | ・Sustain:Standard jack (sustain, sostenuto, soft, rhythm) | 
| PHONES/OUTPUT | Stereo standard jack | 
| Connection to App | Yes (Chordana Play) | 
| MIDI | Yes (Using the USB port): GM level 1 compatible | 
| Built-in Songs | 60 | 
 
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