... Power SupplyUSB port / 2x AA batteries(not include) Available ColourPure White Casing MaterialABS+PP Product Features1, Mini Aromatherapy Diffuser,Natural fragrance design ... computer USB port, or Power operated by 2 pcs of AA batteries(not included).4, Gasification humidifier, no need to ... FCL (58 CBM)24552psc (682 cartons) Picture:Our Other Product: battery powered humidifiers with USB or AA battery