Keywords: USB Air Humidifier, Ultrasonic Mist Oil Diffuser, 7 Colour Change LED Night light, Mist Humidifier, Aromatherapy Diffuser Note: This device needs to be continuously connected to a USB cable to use, no built-in battery inside, adapter is not included. Do not support water-shortage auto-off, please refill tap water or mineral water each time before using.Description: Wood grain design, the diffuser actually performs three functions in one device: humidifier, night light and aromatherapy. Features: Wood grain design 3-in-1 diffuser: aromatherapy, humidifier, night light. Water-soluble essential oil compatible. 7-colour breathing LED night light, calming light hues. Ultrasonic smooth mist, high humidification effect. LED indicator, one press to start misting and lighting, second press only misting, third press shut down. Auto-off 3 hours of continuous working to protect the product from being burned out. Low noise, Low energy consumption. Ultra-fine and uniform mist, suitable for small space bedrooms, offices, cars, bathrooms. Instructions: Unscrew and open, add the right amount of water (130ml), add 2-3 drops of essence oil. Rotate the suction wick to remove the cotton filter. Soaked filter cotton for about 3-5 minutes. Installed cotton filter connected to the power supply. Press the touch switch to operate.Specifications: Material: ABS, PP Colour: Light brown Size (D. x H.): 10cm x 9.5cm Capacity: 130ml Mist: 35ml/h Input: DC 5V Timing Function: 3 hours Efficient Area: 10 square meters Noise: Less than 36dB Power Supply: USB Package Contents: 1 x Air Humidifier 1 x Filter Cotton 1 x USB Cable 1 x Manual