My Melody USB Desktop Humidifier ❤︎ This is an ultrasonic humidifier with a cute My Melody design. It has a water tank of approximately 300ml and can humidify at a rate of about 40ml/h. - Power: DC 5V - Material: ABS - Water Tank Capacity: Approximately 300 ml - Humidification Rate: Approximately 40 ml/h - Humidification Method: Ultrasonic - Continuous Operation Time: Approximately 6-9 hours - Accessories: USB cable, stand (stick) x 3 I haven't used it much, but it has been stored at home, and the contents have yellowed slightly. (See image) I hope you understand. Also, the box has a dent. Thank you for your understanding. Thank you for looking.