Features: 88 keys piano Have 5 full scale, 40 demo songs, 100 kinds of rhythm, 128 kinds tone Midi interface Earphone jack, also can connect with external speaker Power supply: aaa batteries x 4 (not included) or 5 voltage dc adapter (included) Packing: printed gift box Model: pn88 Key number: 88 Packing: color box Moq: 1000 pieces Power supply: aaa batteries x 4 (dc 5v) Color: black Application: practising, educating, etc Export markets: north america, south america, eastern europe, southeast asia, oceania, mid east, eastern asia, western europe 2kg