Just plug the light into your phone(with connector)and it automatically lighting, Compatible with most USB output port such as Power bank/cars/Portable Charger/Computers/Karaoke Microphone etc, Plug and play. The smart voice activation sensor is embedded, and strobe lights capture nearby sounds or music and changes strobe lights color or speed with the music.Our mini usb mushroom disco ball design, working hours up to 20,000 hours, is also only low heat and low power consumption. Birthday Party, Discos, Dance Halls, KTV, Bars, Stages, Clubs, Concerts, Christmas, Friends or Family Celebration Parties or Car, enhance the atmosphere.