【USB Powered】 - 5V low voltage, low heat. It is touchable and safe for children. Ideally with a USB connection, because you don't always need a power outlet. So you can fix it very flexibly in the room and with a small USB battery, you are flexible. （USB plug not included） 【Ball Lights - The cotton ball lights look very warm, cozy and light, the string makes a very pleasant and dignified light and is not dazzling. The light is soft and pure and creates a clear fairy effect in the dark. 【Fomantic Decoration】 - Where can you use it? Room decoration, girls, teenagers, baby, wedding, balcony decoration, terrace, Christmas, party, curtain party decoration, Halloween decoration, indoor and outdoor decoration, crafts, gifts etc. The light strings glow pleasantly, which is really a nice idea. 【IP44 Waterproof】 - Slightly waterproof, but the USB was not waterproof. The distance between the two lights is 15 cm, the diameter of the cotton ball is 6 cm. Create an instant atmosphere for the room