Feature:1. The double‑ring humidifier has a simple and elegant design, a variety of adjustable rotation speed fog modes, a large capacity of 330ml, and can last for 10 hours.2. An air humidifier can soften and moisturize dry, cracked skin in winter. It can be used as a spray in summer or hot weather. When you sleep with the air conditioner on, it can also help you breathe better.3. Portable USB humidifier, light weight, can be placed anywhere, can be used in family rooms, baby bedrooms, office desks, cars, travel or yoga.4. Our desktop dual‑ring humidifier using USB interface, compatible with any device and USB port (notebook, power bank, socket, power socket, etc.).5. It has a very high ornamental, can be placed on your desk, staring for a while, can relieve eye fatigue, suitable for placing on the computer desk.Specification:Item Type: Air HumidifierMaterial: ABS + PP + SiliconeWeight: Approx. 258g/9.1ozProduct Size: Approx. 8 x 7 x 12.5cm/3.1 x 2.8 x 4.9inCable Length: Approx. 1m/3.3ftPower Supply Mode: USB Power SupplyWorking Voltage: DC5VWater Tank Capacity: 330MlSpray Volume: 35-50ml/HWorking Current: 250-400mAUse Power: 3WUse Time: Continuous Spray 5H/ Intermittent Spray 10HPackage List:1 x Air Humidifier1 x Data Cable1 x Instruction1 x Humidifying Rod1 x Single Ring Base1 x Single RingNote:1. Please allow 0‑2 cm error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.