Can you tell me how to get to Sesame Street? We don't know the way, but we do know that you can rock out with the Grover Microphone! Rock along with 3 built-in songs, or sing your own! For more rockin' fun, this toy interacts with Let's Rock Elmo! This microphone includes 3x "AAA" batteries and measures about 8 1/4-inches long. Ages 1.5 to 4. (Sold separately.)