Comes with power supply.
Casio CTK-611 Keyboard Technical Specs
61 full-size keys
Touch sensitive (with on/off switch)
24-note polyphonic
192 tones: 128 general MIDI + 32 preset synth tones + 32 user synth tones; 8 drum sets; synthesizer function lets you create and store your own sounds
Reverb: room, stage, hall settings
100 rhythm patterns & 100 Free Sessions (automatic chord progressions)
CASIO CHORD/Fingered Chord/Full-Range Chord auto-accompaniment systems
Backlit LCD Window (92 x 40 mm) displays selections and status of Tone, Rhythm, Mixer and keyboard functions, and Tempo
On-screen Keyboard displays notes & chords played, and Metronome icon indicates the beat
Mixer function allows control over each MIDI channel and accompaniment part
2 song/6-track Memory, Real Time or Editable Step Time (5200 notes)
6 Drum Pads
Pitch Bend pads
Sustain Pedal jack
MIDI IN/OUT jacks; 16-part Multi-Timbral
Transpose and Tuning control
2 Built-in speakers; 1/4" stereo lineout/headphone jack; 2.5W+2.5W audio system
Operates on D batteries or optional AD-5 AC adaptor