Model Number: FL732 Key Specifications/Special Features: Product size: 11.5 x 8.8 x 13cmPowered by 4AA batteries or adapter or USB wire. The accessoryis optionalLow water level protection - it will be off automatically whenthe water level is reached the bottom lineFragrance oil can be used with this product to ease tire andrelax your bodyThere are two working modes:Non-stop working mode - the unit will be kept working once theunit is turned onRhythm working mode - the unit will be kept working for fewminutes, then stops, not working for few minutes. This working modeis good for dispensing aroma oil. It would make aroma so strong butkeep even