1、Universal to Use: Portable roll up piano for all ages; with 88 keys (A1‑C9) standard piano; with Bluetooth MIDI function for APP connection. 2、Multiple Settings: Roll up digital piano with 128 tones, 128 rhythms, 14 demo songs with Bluetooth connection. 3、Multifunction: Portable electric piano with recording, editing, playback, sustain, vibrato, teaching, chords, etc. 4、Easy to Use: Portable piano with LED digital tube display; independent playing with its own speaker; support external sound or headphones; external sustain pedal is available. 5、Power Supply: Digital piano can be powered by rechargeable lithium battery, external DC 5V power supply or mobile charging power supply; support MIDI output can be used with computer or tablet connection. Item Type: Roll Up Piano Material: Natural Silicone, ABS Color: Black Output Power: 500mW Power Supply Mode: 1. Built in Lithium Battery Power Supply 2. External USB Power Supply Battery Type: Built in 1100mAh Lithium Battery (included) 1 x Host 1 x Power Cord 1 x Adapter 1 x Sound Extension Pedal 1 x Manual