Ultrasonic technology: Ultrasonic Pest Repeller, Can put out non-toxic ultrasonic waves without radiation Ultrasonic Pest Repeller has ultrasonic frequency (20-65 kHz) only directed at insects, mosquitoes, flies and rats It offers a high frequency that humans cannot hear, but it is very repellent to spiders and insects energy efficient and environmentally friendly: This electric pest control is made of high quality ABS flame retardant materials and consumes less electricity The device is energy efficient, quiet, safe, environmentally friendly and radiation resistant The vermin guard must be left plugged in for 24 hours to ensure complete protection100% safe for children and pets: This ultrasonic pest control is one of the easiest methods of eliminating pests The ultrasonic frequency is inaudible to humans and animals and completely harmless and safe for pets and children At the same time, it is not with chemical substance and harmful radiation, so it can be used safelyWide usage: It is widely used in homes, warehouses, offices, gardens, hotels, etc It is recommended to install one for each room because ultrasound cannot penetrate walls and solid objects For large storage areas with vermin, we recommend installing 2 or more devices Protects you all day before the showQuality Confidence: We used good quality materials, no danger do not hesitate to contact us, if you have any questions Ultrasonic pest control normally takes 3-4 weeks to obtain a different result depending on the degree of infection If you do not see results within 3 weeks of using our ultra pest control products, please contact us