Usage Tips:Feature: Bed bugs breed in warm, moist environments. Your bed is a breeding ground. There are about 10 million bugs per bed and their feces can cause hay fever, dry eyes, eczema, acne, cough and rhinitis. And they feed on your blood while you sleep Eliminate these dangerous pests without the need of using cancer-causing chemicals or excessively changing your current routine Rest easy using , protecting you from harmful bed bugs, dust mites and insects by emitting ultrasonic electro magnetic waves that attack the pests central nervous and auditory systems. The best part is that these waves are completely inaudible to human beings pets This product relies on a microprocessor to create a forcefield in your home. It emits ultrasonic soundwaves pulses that randomly create digital sequences which prevent pests from breeding eating. This miracle device will send rodents, bugs, and other pests running This product also switches its frequency mode constantly, preventing mites from adapting and immunizing at a fixed frequency. It also has a low power consumption and long life operation of up to 10 years. So you dont need to worry about expensive electricity bills or replacing the device after a couple of years. Protect your family from the dangerous hazardous effects and terrible diseases that come with them with no extra effort required Specifications: Method: Ultrasonic Wave Voltage: 110-220V Power: 1-3W Driving range: 70 square meter Frequency regulation: Automatic frequency conversion Size: Approx. 5.5 x 3 x 9.6cm / 2.17 x 1.18 x 3.78 Can generate the frequency ultrasonic stimulation, effective control within the scope of the mites. Suitable for families, restaurants, hotels, hospitals, etc. Material: Plastic Pattern Type: Solid Age Range: 34M , 35M , 14T , 27M , 28M , 29M , 31M , 32M , 26M , 0-1M , 21M , 22M , 23M , 8M , 11M , 4M , 13M , 14M , 15M , 16M , 17M , 19M , 25M , 20M , 30M , 33M , 5M , 7M , 10M , 1M , 2M , 5T , 6T , 7T , 8T , 9T , 10T , 12T , 13T , 14T , 3M , 9M , 6M , 12M , 18M , 24M , 11T , 3T , 4T includes:1 x Dust Mite Killer Device