Mini capacity: 130 ml. Mini ultrasonic aroma humidifier with colour changing LED. The mini humidifier is easy to carry and use. It can be used as an aroma diffuser or humidifier. It is perfect for office, home, yoga room, hotel room, etc. USB power supply: no matter where you are, as long as there is water in bottles, the USB power supply can be moistened. It is convincing that the USB plugs can be connected to cars, laptops, mobile power supply, etc. Add essential oils: There is a non-slip silicone base on the bottom of the product. Add water-soluble essential oils to the product, played the role of aromatherapy. The light scent soothes the mood, relaxes the mind and promotes metabolism. Function: the product has a humidification function and a fragrance function. It emits an ultra-smooth mist that can soften and moisturise dry and cracked skin in winter, eliminate static electricity and nourish your skin. Durable: ultrasonic humidifier is made of ABS material, comprehensive performance is better, high impact resistance, high heat resistance, fire resistance, hygroscopicity. With the help of ultrasonic technology, this diffuser works extremely quietly. Improve air quality:The portable air purifier refreshes and hydrates the air in your room in dry weather. Moisturise the skin:The ultrasonic diffuser humidifier can moisturise your skin or smell the air slightly - the uses are endless. Good atmosphere:The room is flooded with cool mist and a pleasant smell. This quiet diffuser with essential oils provides a great feeling of space and tranquillity