High Quality Material: This mini portable humidifier is made of environmentally friendly plastic material which is durable. This humidifier will automatically stop working once the water runs out. Feature: The air humidifier has sufficient water absorption, silent operation, with container diversity, large amount of fog. Creative and concise design, make the air humidifier an interesting decoration. Size 5.5cmx5.5cmx19cm/2.17inchx2.17inchx7.48inch. Multifunctional: Quiet, perfect for sleeping. USB rechargeable humidifier, 3h automatic power off, continuous spray; 6h automatic power off, intermittent spray. Multi Purpose: The USB air humidifier is convenient and easy to use, space saving and portable, and can be used for home, office or car, you can enjoy it whenever such as doing housework, working, reading, doing yoga, traveling, etc. Perfect Gift: This cool mist humidifier is a beautiful present for families, friends for birthday and parties. Specification: Material: Plastic Size Chart: 5.5cmx5.5cmx19cm/2.17inchx2.17inchx7.48inch Package Includes: 1 Humidifier 1 USB Cable 1 Cotton Swab Note: Please allow slightly errors due to manual measurement and different monitors.