Allow kids to enjoy a wonderful music journey with our 31-key piano toy! The 31 keys made of high quality materials offer a comfortable touch. Besides, the rich functions bring much fun: 4 music styles, 8 percussion effects, 4 music instruments, 4 accompaniment styles, record/play function, volume adjustment and speed control. With the demo songs and LED teaching modes, children can learn to play the piano easier. Whats more, the MP3 interface renders electronic devices accessible for more fun. And toddlers can sing while playing thanks to the MIC interface. Furthermore, if you don't press any button for more than two minutes, the toddler music piano toy will enter power saving mode automatically. Note: Please prepare 4 1.5V AA batteries by yourself before using this toy. Costway 31 Keys Kids Piano Keyboard Electronic Musical Piano w/ Microphone in Pink