E-56SpecificationsModels: CTK-810/WK-110Keyboard: CTK-810: 61 standard-size keys, WK-110: 76 standard-size keys (with touchresponse on/off)Tones: 515; with layer and splitPolyphony: 32 notes maximum (16 for certain tones)Auto AccompanimentRhythm Patterns: 120Tempo: Variable (226 steps, = 30 to 255)Chords: 3 fingering methods (CASIO CHORD, FINGERED, FULL RANGE CHORD)Rhythm Controller: START/STOP, INTRO, NORMAL/NORMAL FILL-IN, VARIATION/VARIATION FILL-IN, SYNCHRO/ENDINGAccomp Volume: 0 to 127 (128 steps)One Touch Presets: Recalls settings for tone, tempo, layer, split, reverb, and chorus.3-step Lesson: 3 lessons (Step 1, 2, 3)Playback: Repeat play of a single tuneEvaluation Mode: ScoringVoice Fingering Guide: On/OffSong BankNumber of Tunes: Song Bank: 100, download songs: Up to 5 (Capacity: Approximately 70 KB*)* Calculated based on 1 KB = 1024 bytes.Controllers: PLAY/STOP, PAUSE, FF, REW, REPEAT, LEFT/RIGHTMusical Information Function: Tone, Auto Accompaniment, Song Bank, numbers and names; staff notation,tempo, metronome, measure and beat number, step lesson display, chord name,fingering, pedal operation, Keyboard, Voice Fingering Guide, Evaluation Mode,Recorder indicatorMetronome: On/OffBeat Specification: 0, 2 to 6Registration Memory:Number of Setups: 32 (4 setups × 8 banks)RecorderNumber of Songs: Two (1 Lesson Recording, 1 Performance Recording)Recorded Data: Lesson Recording: Right-hand part, left-hand part, both-hand partsPerformance Recording: Track 1 (chord accompaniment), Track 2 (melody)Recording Method: Real-timeMemory Capacity: Approximately 12,000 notes (total for two songs)Other FunctionsTranspose: 25 steps (–12 semitones to +12 semitones)Tuning: 101 steps (A4 = approximatery 440Hz ±50Cents)TerminalsUSB port: TYPE BSustain/Assignable Jack: Standard jack (sustain, sostenuto, soft, rhythm start/stop)Headphone/Output Terminal: Stereo standard jack Output Impedance: 150Ω, Output Voltage: 4.5V (RMS) MAX Output Impedance: 200Ω, Output Voltage: 5.2V (RMS) MAXPower Jack: 9V DCPower Supply: 2-wayBatteries: CTK-810: 6 AA-size batteries, WK-110: 6 D-size batteriesBattery Life: CTK-810: Approximately 2.5 hours continuous operation on alkaline batteriesWK-110: Approximately 6 hours continuous operation on manganese batteriesAC Adaptor: AD-5Auto Power Off: Turns power off approximately 6 minutes after last key operation. Enabledunder batter power only, can be disabled manually.