Features: Advanced Ultrasonic Technology: Emitting high-frequency sound waves imperceptible to humans and pets, this device specifically targets the nervous system of dust mite, forcing them to leave your living spaces without the need for harsh chemicals. Completely Wireless & Portable Design: Enjoy ultimates free-dom and flexibility. Its compact, cordless design allows you to place it anywhere from your bedroom and living room to nurseries and pet areas without being restricted by power outlets or tangled-cords. Chemical-Free & Safe for Everyone: It's perfectly safe for children, pregnant women, and pets, making it an ideal choice for sensitive individuals and allergy sufferers. Whisper-Quiet Operation: Experience undisturbed peaces. Unlike noisy traditional cleaners or purifiers, our ultrasonic device operates silently, allowing you to run it continuously day or night without any disruptive sound, ensuring a calm environment. Versatile Application: Perfect for a multitude of spaces and items including mattresses, pillows, sofas, carpets, curtains, wardrobes, pet bedding, and even children's toys, ensuring comprehensive Notice: 1.Actual color may be slightly different from the image due to different light effect 2.Please allow 1-3cm deviation due to manual measurement Description: Rated voltage: 90/220V Sound frequency: 22~65KHz automatic frequency conversion, covering more mite disgusting frequencies. Input rated frequency: 50/60Hz Rated power: 1W