Easy to use: Use a variety of USB interface power supply with DC 5V power supply, you can plug it into any USB power source, such as mobile power supply, laptop, computer PC, a karaoke microphone or any other with a USB output port device. Easy to carry: The mini disco ball is very small and portable, powerful, can provide bright and flashing light, perfect for bringing disco ball atmosphere, beautiful gadgets, beautiful and colorful Car Built-in Light: multi-color lighting enhances stage effects for better singing and fun Small and exquisite appearance: Lamp body size: 1.45"x1.57", the best lighting area is 5-10 suqare meters. Last long heat and low: Our mini USB disco ball design for long working time, up to 20,000 hours. Also just low heat and power consumption, environmental protection and energy conservation.