This is an amazing toy microphone for kids with built-in music， cheer and applause sound. A great gift for your kids and they will love it.Your child can just go anywhere she/he likes with the microphone and sing， listen to the applause， cheers or to the built-in music.The microphone has a built-in amplifier， allowing your child to sing to it. Hi-tech and novelty style， with 10 lovely melodies. Down Key: While music playing， press the button to backward one melody.Create joyful party environment. Wonderful gift idea. Needs a small screwdriver to open the screw on the battery cover (not included). Requires 3 AA 1.5V batteries (not included). Power on / off (Also volume adjustable button). Two Sound Effects: Applause and cheers. Volume Button: Adjust volume.Demo All: Play the first melody to the end and then press once to change to another next melody. You can also press it again during playing to stop the music. Demo: Music start and repeat the same melody. You can also press it again during playing to stop the music. Up Key: While music playing， press the button to forward one melody. Stop: Stop music playing. LED Light: LED flashing while playing. Length: 22cm (8.7 inch). Weight: Approx 120g.