Feature: Bed bugs breed in warm, moist environments. Your bed can harbor these pests. They feed on blood while you sleep and may contribute to allergic reactions such as hay fever, dry eyes, eczema, coughing, and rhinitis. Eliminate these pests without using harsh chemicals or disrupting your daily routine. This device helps protect against bed bugs, dust mites, and other insects by emitting ultrasonic waves that affect pests' nervous and auditory systems. These waves are inaudible to humans and pets. The product uses a microprocessor to generate ultrasonic pulses with randomized digital sequences, helping prevent pests from adapting. It continuously varies its frequency to enhance effectiveness and features low power consumption with long operational life. Suitable for use in homes, hotels, restaurants, and hospitals. Helps maintain a cleaner, more comfortable environment without ongoing maintenance or effort. Specifications: Method: Ultrasonic Wave Voltage: 110-220V Power: 1-3W Coverage Range: 70 square meters Frequency Regulation: Automatic frequency conversion Size: Approx. 5.5 x 3 x 9.6cm (2.17 x 1.18 x 3.78 inches) Material: Plastic Color: Solid Package List: 1 x Dust Mite Killer Device