Features:Mini USB humidifier with acorn-shapeddesign, delicate appearance.Made of fine quality material, zero radiation, safe and reliable.Just add appropriate water, perfect to increase air humidity and reduce dust and bacteria, moisturizing your skin.Built-in colorful LEDs nightlight, and it is equipped with a standard USB port for connecting mini USB fan or mini USB light to use.USB powered supply, plug and play. Easy to connect it with any USB device to use(like USB-Charger, Power-Bank, Laptop, etc).Low power consumption, it will automatically stop the spray modeafter 4 hours of continuous work, ensuring safety.Ultra-quiet design, which will not disturb your study, work or sleep.Perfectly suitable for home, office and car use.