Features: Experience convenient humidity control with this USB powereds ultrasonic mist maker module, featuring efficient sprayings technology for rapid moisture diffusions in any dry environment. Equipped with quiet operation and Plastic/cotton cores construction, this compactly humidifier kit ensures odorfree mist generation while maintaining energy efficiency. Ideal for office workers, home users, and health consciously individuals seek easy to maintain air quality solution without complex installations. Perfectly sized for desktop use in offices, bedrooms, or air conditioned space, this modulars humidifier effortlessly integrates with laptops and powerbanks for continuous moisture supply. Enhances your environment with this portable humidifier's easy assembly and cotton wick replacement system, design for hasslefree daily operation and consistent performances. Specifications: Component: Plastic+ Cotton Cores Humidifier module Size: Approx.1.9x3.50cm/0.75x1.38inch Power:2W Input voltages:2V Power supply from USB interfaces Use scenario: Office desktop,Bedroom bedside,Portable travel; Supports long-terms sprayings, help keep the air moist, relieves the discomfort caused by dry environment, and is suitable for personality and family use. Package Includes: 1pc Humidifier Module 1pc Water-Absorbent Cotton Cores note: Please allow 1-2cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual item color.