The first wireless mic with Bluetooth speaker integrated to sing and dance like a real star. Works wirelessly with every Bluetooth-equipped device. Music volume control. Transform your voice for hours of fun. Press the button to choose between 3 tunes: voice with echo, a high-pitched feminine voice, and a deep-pitched masculine voice. 3W speaker for a high quality sound and built-in rechargeable battery for around 4 hours music play time. A retractable phone holder is included to read the lyrics