Ultrasonic humidifier with a 260ml water tank and aroma function. - Model Name: Ultrasonic Humidifier - Aroma Function: With aroma case - Water Tank Capacity: 260ml - Applicable Floor Area: 7-4 tatami mats - Power Consumption: 3W - Humidification Capacity: 3.6L/day I purchased this item about a month ago. The box is unopened. I am also listing another of the same product, so if you would like two, please take a look at that listing as well.