KidKraft 63346.0 Sing Along Mic and Amp Set Toy Working microphone with a built-in speaker Four fun musical beats play at the push of a button Two crowd noises can play at the push of a button - happy cheers or disappointed jeers Convenient auxiliary jack means kids can plug in mp3 players, CD players or even a smart phone - what an easy way to find great background music! Adjustable height - microphone can go as low as 28 in/71 cm and as high as 46 in/116 cm and 4 AA batteries are included