Cloud simulation colorful gradient flame aroma diffuser home hotel desktop usb air humidification

High-concerned chemical : None Operation Method : Keyboard Type Power Type : USB Water-shortage Power-off Protection : Yes Certification : ROHS,CE Noise : <36db Humidification Method : Mist Discharge Capacity : <1L Voltage (V) : 5v Power (W) : 2 W Voltage : 5v Origin : Mainland China