A microphone with a built-in Bluetooth speaker allows you to listen to music and sing at the same time! Perfect for any party or karaoke. * The microphone has the buttons: * Turn on / off / * mode Previous song * Next song * Microphone slider * Play / pauza * Voice modulator (4 modes) * Increase / decrease the volume * Reverb Reverb Slider * Port panel: micro USB port, microSD card slot * AUX input, USB port.