USB Humidifier Oil Diffuser Mini Aroma Essential Ultrasonic Cool Mist Air Purifier 7 Color Change LED Night light for Office Home Please note: Before using this humidifier, please soak the sponge strip in the Water, then it can be to fog out during use! Name: Wood grain humidifier Lighting effects: Lantern Working voltage: DC 5V Switch: Plug and Play Capacity: 130ml Rated power: <3W Material: ABS Product size: 100*100*95mm Mode of operation: mechanical Power type: USB