Specifications: Delicate water mist, it can reduce the weight of single water mist, and without wetting desktop. 220mL large capacity water tank with 400mAh battery, which makes it has 10 hours working time. 6 hours regular power off to prevent dry burning, safe to use. Silent operation without boring noise and no radiation, will not affect sleep. Item Name: USB Humidifier Material: ABS, PP, Silicone Use Power: 1.5W Rated Voltage: 5V Spray Volume: 40mL/H Working Current: 400mA Water Tank Capacity: 220mL Executive Standard: GB4706.1-2005 GB470648-2009 Use Time: 5 - 10 Hours Applicable Area: 10-20 Square Meters Features: Simple Operation, Silent, Portable Size: 10.3cm x 8cm x 2.5cm/4.06" x 3.15" x 0.98" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Humidifier 2 x Cotton Swab 1 x USB Cable 1 x User Manual