Sing and count along with your favorite Numberblocks! Put on a musical, math-tastic show with your favorite Numberblocks™ friends using the Numberblocks Sing and Record Music Player! Features 15 lively Numberblocks sounds and songs, including the Numberblocks theme song. Children can simply press the buttons to count and enjoy a musical mix of numbery songs and phrases. Adjust the volume to entertain a crowd, or use the headphone jack for a private concert. The player is portable with an attached microphone and easy-carry handle—take the show wherever you go! They will delight in imaginative play as they amplify and record their voices with the built-in microphone—and use the playback feature to enjoy the math melodies they create. Record and replay up to 90 seconds of audio. Includes 1 Music Player with Attached Microphone and 2 AA Batteries. As your little one works from preschool to kindergarten, the Numberblocks Sing and Record Boom Box is a great way to make learning fun and help with the transition. The Numberblocks crew brings math learning to life with the Numberblocks Sing and Record Boom Box! Numberblocks is helping millions of children around the world to fall in love with numbers, master key math skills, and discover the joy of learning.