Sound ActivationBuilt-in sound sensor, Ultra-mini size but super bright. The smart voice activation sensor is embedded, and the LED atmosphere light picks up nearby sounds or music and changes a variety of colors or speeds with the rhythm of the music. DC 5V, 4WOur mini disco ball lights use DC 5V power supply, you can connect it to any USB power source, such as mobile phones/car/power bank/Macbook/PC or any other USB output port device. Energy efficientThe working time of this LED strobe light is up to 20,000 hours with lower energy consumption. Various occasionsSuitable for family gatherings, outdoor activities, KTV boxes, car atmosphere, children's birthday. What you get4 x Mini USB Disco Light, Includes 3 types of adapters. Specification: Voltage: DC 5V Power: 4W Flash range: 50-10m Colors: Mixed, RGB Product weight: 28.5g Plug and play Package size: 45*45*45mm Package includes: 4 x Mini USB Disco Lights Includes 3 types of adapters