The mmw keyboard provides children aged 4 years and over with a basic feeling for melodies, rhythms and encourages musical development. There are numerous functions available to ensure there is never a dull moment when playing and composing tunes. Functions: - the 7 rhythms and 8 demo songs can be used to compose tunes at the 37 black and white keys - individual compositions can be recorded and played back. - 4 Different drum sounds help to compose tunes - speed and volume control - keyboard plays 8 different instruments - chords can be recorded and played back - automatic switch off function - speaker 3 x 1. 5V r6 battery is included with the keyboard.