Description: Product Name: Mengchong double spray humidifier Product size: 11.2 * 11.2 * 12.2 Product weight: 330g Nozzle: 2 Product capacity: 400ml Service time: 7 to 10 hours Specifications: 1. [ultra silent]: quiet operation. Sleep won't disturb you 2. [large capacity] anti drying, penetration and moisturizing 3. [automatic power-off protection] prevent drying to prevent damage to the machine 4. [small size], light and compact, easy to carry 5. [good sealing] no water leakage during dumping, good sealing, no fear of dumping, no water leakage and no electric leakage, and safe humidification 6. Nano Spray: soft and fine mist, soft and refreshing ultrasonic molecular atomization, fine water molecular spray, continuously moisturizing continuously, moisten every inch of skin. Package Included: 1 * humidifier 1 * USB cable 1 * cotton stick 1 * instructions Notes: Precautions: before work, the cotton core in the humidifier must be taken out and soaked in water before use. If the fog is significantly reduced, the cotton swab must be replaced. Use it via USB cable.