The first wireless microphone with an integrated Bluetooth speaker allows you to sing and dance like a real star. It works wirelessly with any Bluetooth-enabled device (up to 10 meters). The microphone features a volume control with echo control for enhanced voice effects, transforming your voice for hours of fun. Press the music control button to choose between three melodies: a children's voice, a high female voice, and a deep male voice. It includes a micro SD/TF card slot and a 3W speaker for high-quality sound, as well as a built-in rechargeable battery that provides about three hours of music playback. The LED lights offer seven different modes and five colors. The music control button lets you start or pause playback, skip to previous or next tracks, adjust the volume up or down, and change your voice. It is compatible with the Red Karaoke mobile app, allowing you to sing and record your performance, so you can choose your favorite song from 70,000 karaoke titles.