VTech Kidi Karaoke Toy Kids karaoke machine is the perfect musical learning toy for your growing toddler; includes 15 kid-friendly sing-along songs Features four voice-changing effects and cool animations show the story of the lyrics; great karaoke for kids and toddlers The educational electronic toy introduces kids to letters and numbers; flashing lights excite and entertain The included microphone works with or without the music playing; musical toy comes with a detachable strap for easy holding on the go Pre-K learning toy is intended for kids ages 3 to 6 years old; 3 AA batteries are included for demo, use new batteries for regular use