400ML Aroma Essential Oil Diffuser Ultrasonic Air Humidifier Diffuser With Colorful Night Light Home Office Mist Fog Maker|Humidifiers Specifications: Product material: ABS plastic Product voltage: 5V Product power: 1.5-2W Working current: 250-350MA Humidification spray volume: 180ml/H Water tank capacity: 2400ML Continuous spray time: regular 10H, intermittent 20H Product size: 180*180*183mm Package Lists: 1 * Air Humidifier 1 * USB Cable 1 * User Manual Note: After receiving the product, please use it according with the instructions. The first time you use it, you need to moisten the cotton swab or fill it with water and cover the lid for 3-5 minutes, so that the cotton swab can be thoroughly moistened before turning on the machine, so that it can spray normally