SOUNDS ACTIVATED: The smart voice activation sensor is built in and the strobe lights pick up nearby sounds or music and change the color or speed of the disco lights. WIDE APPLICATION: The balls disco can be used with smartphones with connectors (for Android phones and iPhones), microphones, computers, chargers, mobile power supplies, Bluetooth speakers, radios, etc. EASY TO USE AND CARRY: The Portable Halloween lights are very small and portable, even smaller than an egg, but super bright. you just need to plug the disco party lights into the output port such as power adapter, power banks, computer. SUITABLE FOR MANY OCCASIONS: Best design for nightclubs, parties dance halls, KTV, bars, stages, clubs, parties, concerts, etc. enhance the atmosphere.