Type:Ultrasonic Cleaner Water Shortage Alarm:No Steam Duration:10-15 minutes Model Number:Ultrasonic Mite Killer Power: 1-3W Usage:for bed sheets, mattresses, pillows Method: Ultrasonic Wave Voltage: 220V Driving range: 70 Square meter Frequency regulation: Automatic frequency conversion Can generate the frequency ultrasonic stimulation, effective control within the scope of the mites. Suitable for families, restaurants, hotels, hospitals, etc. Plug Type: US Plug, it applies to Canada, India, Japan, Mexico, Thailand, Taiwan, the United States, the Philippines and so on. colour:white Material:plastic size:5.5x3x9.5cm Package Contents: 3 x Ultrasonic Mite Controller Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.