Features: -Built-in 37 keys, 8 tones, 8 rhythms, 11 demos, 4 percussion, 4 animal sounds, volume and tempo control. -The electronic piano keyboard with recording and playback function allows children to record and play back their own creative melodies. -Made of durable ABS material, fine workmanship and smooth edge design, kids won't get hurt. -Two power supply methods, powered by USB or 3*1.5V AA batteries (not included), easy to carry, children can use it at any time, whether they are on the go or at home. Specification: Material: ABS Size: 43*16*5.6cm Colour: black&white Power: USB or 3*1.5V AA batteries (not included) .