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 itNeeds 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 cheersVolume Button: Adjust volume Stop: Stop music playing LED Light: LED flashing while playing Color: Pink Length: 22cm (8.7 inch) Weight: Approx 120g Easy and Convenient to usePackage Include: 1 x Wireless Microphone Karaoke Singing Fun Toy (Without retailing packing)