Features: Multi-functions BT speaker with karaoke microphone, you can not only listen to music but also sing with karaoke mic out. The built-in speaker in the microphone is of good sound quality, which gives you the stronger shock and heavier effect, just like singing in KTV. Two connection modes -- BT mode (sing with BT microphone) and wired mode (sing record at the same time). Perfect sound quality -- support original sound elimination and echo reverberation functions. Awesome present for friends, families or any music lovers.