Description: natural crystal Air Humidifier Aroma Oil Diffuser. 250ml water tank With Night Light 5V 1A micro USB powered, compatible with any device with USB port like laptop, desktop, power bank, socket, power outlet. Small and lightweight, perfect for home bedroom, office in 31-40 square meters, or portable for car, travel. Specification: Rated input: DC5.0V / 1A Working current:400mA Rated power:2W Water tank capacity: 250ml Spray volume: 35-45ml/h Scheduled shutdown time: 8-12 hours Material: ABS+PP Package Includes: 1 Piece Humidifier 1 Piece USB Cable 1 Piece User Manual