Features: Small size,easy to carry and store. USB interface, It is suitable for vehicle models or adapters with DC5V USB interface, you can install it anywhere you want to create a romantic lighting effect. In the dark environment and with the power on, plug the product into the USB port, the USB LED light has a light sensor on top so they turn on when it is dark. Charging cable of the mobile phone or interfere with other electrical appliances, which greatly improves the practicality. It has a wide range of uses, and can be used in for cars, laptops, power banks, etc. Specifications: Material: ABS Voltage: DC5V Size: 2.5x1.5x0.5cm/0.98x0.59x0.20in Package Includes: 1PC x USB LED RGB Ambient Light note: No retail package. Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!