1、88 KEYS: Portable roll up piano is designed for all ages, and has 88 keys (A1 to C9), with Bluetooth MIDI function for APP connection, and is very convenient. 2、MULTIPLE TONES: Roll up digital piano with 128 tones, 128 rhythms, 15 demo songs with Bluetooth connection and microphone and sound input function, and you can play different music. 3、MULTIFUNCTION: Portable electric piano with recording, editing, playback, extension, vibrato, teaching, chords, reset, shift function, tone digital direct selection key etc. 4、LED DISPLAY: Portable piano with LED digital tube display, independent playing with its own speaker, support external sound or headphones and external extension 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. 1 x Roll Up Piano1 x Power Cord1 x Adapter1 x Sound Extension Pedal1 x Manual Item Type: Roll Up PianoMaterial: Natural Silicone, ABS Color: Black Output Power: 500mWApplicable Voltage: 100-240VPower Supply Mode: 1. Built in Lithium Battery Power Supply 2. External USB Power SupplyBattery Type: Built in 2200mAh Lithium Battery (Included)