Professional sound source AODSK 88 Key keyboard piano With 128 different rhythms and tones, as well as 20 demonstration songs, you can explore various music styles, providing more musical elements and expression space Headphone Jack Supports headphone output, allowing for quiet practice at night or in noise-sensitive environments without disturbing others. Rhythm 128 Demo song 20 Tone 128 Function Chords Function Metronome Function Volume Function Transpose Function Tempo Switch Function Vibrato Function Sustain Function Drum kits Function Display Removable headstock Lightweight and easy to carry, suitable for outdoor performances, travel or mobile use Rechargeable lithium battery Get rid of the constraints of power cords and play anytime, anywhere AODSK Dedicated Audio Source For A Better User Experience Rhythm: 128; Tones: 128; Demo Songs: 20