3 hour charging time with 30 hour playback time Inbuilt mobile holder Voice changer Intellegence noise reduction Echo, Music and volume controller High Density mic receiver Karaoke sound effects Stand Microphone with multifunction key button, enjoy singing wherever and whenever, firmly holding and convenience Bluetooth 4.2, Stable and fast, realizing wireless freedom Full frequency, large-diaphragm speaker with high quality, intelligent noise reduction, keep singing highly.