Keyboard: Number of Keys: 88. Key surfaces - white: acrylic resin. Touch sensitivity: Hard/Medium/Soft/Fixed. Keyboard action: Specialized Grand Piano Action. Hammer Sensors: non-contact optical fiber. Key sensors: non-contact optical fiber. Pedal: GP responsive damper pedal. Number of pedals: 3 with half pedaling, sostenuto, soft. Piano Sound: Spatial acoustic sampling. Binaural sampling. Key-off samples. Virtual resonance modeling (VRM). Polyphony: 256. Number of voices: 15. Effects: Reverb, Brilliance, Intelligent Acoustic Control (IAC), Stereophonic optimizer. Songs: 10 preset songs, 15 voice demo songs. Recording: Songs: 10. Tracks: 1. Data capacity: approx. 550 kb/song. Recording time: 80 minutes/song. Recording/Playback: WAV (44.1 kHz, 16 bit, stereo). Internal memory: approx. 1,3 MB. External drives: USB flash drive. Metronome: 5 - 500 Bpm. Transpose: -6 - 0 - +6. Tuning: 414,8 – 440,0 – 466,8 Hz. Scale type: 7 types. Headphones: 2 x 6,3 mm stereo jack. MIDI: In/Out. AUX in: 3,5 mm jack. AUX out: 6,3 mm stereo jack. USB to device. USB to host. Auto power off. Sound system: Spatial acoustic speaker system. Amplifiers: 6 x 30 W. Speakers: 3 x 8 cm, 2 x 13 cm, 1 x 16 cm. Dimensions: 1465 x 1001 x 618 mm. Weight: 117 kg. Colour: Polished Ebony