The lightweight and compact full 88-key foldable portable piano keyboard can be folded to 33 cm and weighs only 1.6 kg for optimal convenience and functionality. The built-in USB and MIDI rechargeable battery can be used for 8 hours, providing efficient and convenient for busy musicians and music lovers. It is very suitable for children, students and professionals who want to play, learn and practice the piano, using large-size keys, realistic feel and tactile keyboard. A variety of digital interface demonstration functions, including 6 metronome settings and 30 demo songs, can be used for various accompaniment exercises. Includes a pedal, handbag and piano note stickers to provide a complete learning and playing experience. Built-in rechargeable battery-1000 mAh