500ML Large Capacity Ultrasonic Humidifier 2000mAh Battery Portable USB Air Aroma Diffuser Humidifiers With Light LED Display|Humidifiers2000mAh Battery Ultrasonic Humidifier H2O Portable 500ML Heavy Fog Mist Maker USB Aroma Diffuser Air Humidifier with LED Display SpecificationProduct name: Jian'ai humidifierModel number: D21Working voltge: DC 5VWorking current: 400-800mAPower: 2-4wSpray amount: 50ml/hBattery capacity: 2000mAh (18650)Charging time: about 2.5HBattery working time: about 5.5HWater tank capacity: 500mlMaterial: ABS/PP/silica gelColor: greenTiming: 8H/16HProduct weight: 326/411gProduct size: 96x96x163MM Notice: Please make the cotton swab wet completely before using, and do not lose the spring. Package Include1 * humidifier