Product Specifications: Item Type: Insect Repellent Material: ABS Plug Options: US/EU/UK/Australia (selectable) Weight: Approximately 93 g/3.3 oz Power Supply: AC110-230V Rated Power: 5~8W Audio Frequency Range: 22KHZ-85KHZ Sound Wave Type: Ultrasonic wave, Electromagnetic wave Speaker Type: 2 buzzers Coverage Area: Up to 150 square feet Product Features: Full-Band Dynamic Cross-Frequency Conversion Technology: Utilizes advanced technology to repel pests effectively. Pest Elimination: With continued use, this ultrasonic pest repeller can significantly reduce pest activity within two weeks and completely eliminate them within 3-4 weeks. It repels pests rather than killing them, making it suitable for your home environment. Easy Installation: Simply plug it into a socket, press once for a beep and two green light flashes to indicate the system is performing a self-test. The green breathing light will turn on, and the system will start working. Press and hold to power off. For optimal results, install the device 30-70 inches above the ground. Safe to Use: This non-toxic, radiation-free, odorless electronic pest control product is safe for use around , pregnant women, and pets. It is 100% environmentally friendly and effective. Wide Effective Coverage: Ideal for use in kitchens, living rooms, bedrooms, bathrooms, warehouses, and basements. Coverage range is up to 150 square feet. Note that ultrasound cannot pass through walls, so using a repellent per room will be more effective.Note: It is normal to see an increase in pests during the first week of use. Pests will significantly decrease after 3-4 weeks of continuous use. Package Included: 1 x Insect Repellent 1 x User Manual