Karaoke microphone Available in 4 shapes DESIGNED FOR PERFORMANCE - Professional audio processor and tuning system, three layers of high-definition noise reduction, creating amazing vivid sound environment and great reverberation, support up to 8-10 hours continuous singing and music playing. Easy to use, you just need to connect your phone with bluetooth or cable, then open the singing app on your phone (such as YouTube, Small, Karaoke Singing, etc.). You can adjust music, echo, voice, magic sound, LED and accompaniment by pressing the button, you can easily switch between songs. Or recording music after connecting it to your phone with a 3.5mm audio cable. You will have spontaneous musical fun wherever you go.