1、Mini and portable. 2、This desktop humidifier can be helpful for keeping the proper humidity. 3、USB power supply, easy to use. 4、3 working modes - You can simply touch to change model between normal mode, indirect work, standby mode. 5、Powerful mist air diffuser with spray volume of 30ML / hour. Features: This desktop humidifier can be helpful for keeping the proper humidity. USB power supply, easy to use. 3 working modes - You can simply touch to change model between normal mode, indirect work, standby mode. Mini and portable. Powerful mist air diffuser with spray volume of 30ML / hour. Specification: Rated voltage: DC5V Rated voltage: 2W Water tank requirements: water bottle (provide for oneself) Spray amount: 30ML / hour Net weight: Approx. 300g Product size: Approx. 14.5 * 18.5 * 23cm Color box size: Approx. 15.5 * 20 * 25cm   Package list: 1 * Humidifier 1 *  Cable Note: 1. Please allow slight error due to manual measurement. 2. Different monitor colors may be different. Thanks for your kind understanding. Operation: 1. Cover the bottle cap that comes with the product, be careful not too loose nor too tight, and the water capacity should be 2/3 of the water bottle. 2. Tilt the product at 45° and align the inner diameter of the bottle with the inner diameter of the product. Do not tighten too tightly. 3. Connect the power supply, touch the switch key and enjoy the fun of the humidifier.