This bluetooth karoake microphone design with professional audio processor and tuning system, high destiny noise reduction,<br>creating a stunning KTV live-sound environment and wonderful echo reverberation.<br>Top birthday or christmas gifts for 3-12 year old girls & boys.Most popular toys for kids in 2021.<br>Has 5 functions:Karaoke (with light function), regular microphone, speaker, recorder,radio...has the echo but other voice options.