SOUNDS ACTIVATED:The smart voice activation sensor is embedded, and strobe lights capture nearby sounds or music and change the color or speed of the disco lights.NOTE: FOR Android phone, PLEASE ENSURE YOU OPEN "OTG" SETTING. ONLY OPENING "OTG" SETTING FOR PHONE, THE DISCO LIGHT ONLY CAN NORMALLY USE. WIDE APPLICATION:LED disco balls 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: Portable halloween lights are very small and portable,even smaller than an egg,but super bright.Power supply by USB charging port, you just need to plug the disco party lights into USB output port ,such as AC adapter, power banks, computer, karaoke microphone, android or apple phone. SUITABLE FOR MANY OCCASIONS:The best design for discos, dance halls, KTV, bars, stages, clubs, parties, concerts, etc. disco ball lamps can be used for weddings, pool parties, Christmas, family or friends family celebration parties or car,enhance the atmosphere. NOTE:Use the phone connector to convert, can be used for mobile phones: (mobile phone needs to open settings - more settings - OTG - open, can be used.) Colorful usb dj light, enhance the stage atmosphere, bring better singing and enjoyment.