The ONE Smart Piano, Weighted 88-Key Digital Piano, Grand Graded Hammer-Action Keys Upright Piano-Matte Black Guided by LED Lights to start playing in minutes 4000+ sheet music, 100+ videos, and games in the free apps Supporting both iOS and Android, phone and tablet MIDI output and recording (please refer to the user manual for setting guidance) High Grade Piano: 88 weighted keys, professional stereo sound, 3 piano pedals and classic wooden body Made for beginners, loved by musicians and teachers