88 Full-Size Keys for Real Piano Feel: The digital piano keyboard is designed with 88 full-size and weight-sensitive keys (1:1 piano key ratio), which can bring you a comfortable finger touch and accurate sound. Besides, you can long press the transpose+ button to adjust to touch response to suit your preferred playing style. Rich Buttons & Wide Musial Setting: This electronic keyboard features various function buttons on the panel such as volume adjustment, chord, record, vibrato, drum kit and metronome to meet different playing needs. Moreover, 128 rhythms, 128 tones and 20 demos will bring you richer and better experience of learning and practice. .