Specifications： Control mode：push button Rated frequency：50 / 60 Hz Applicable area：41 ㎡ (included) - 60 ㎡ (included) Colour: White Material: ABS-A1 new flame retardant plastic Power supply: AC 90V~220V Power: ≤2W Feature: Usage：plug in the power supply and press the switch. Please use it more than 0.5m above the ground. Repel mites, mosquitoes, insects, rodents, reptiles, etc. Intelligent chip automatic frequency conversion. 360° full surround scanning sound, breathing incrementally removing mites. Precision ultra-thin ceramic acoustic wave plate. No radiation, no noise. Voltage overload protection, power saving chip,1 kwh="" per="" month="" span=""> Resonant ultrasonic technology. One key switch. Fine workmanship and good performance. Easy to use. Long service life. Notice：Conversion : 1 inch = 25.4mm or 1mm = 0.0393 inch,1cm=10mm Please allow 1-3mm error due to manual measurement. Pictures: Due to the difference between different monitors, picture may not reflect the actual color of the item. Package Included: 1PC * Air Purifier