Ulisem Ultrasonic Mosquito Repellent Plug-in, Ultrasonic Mouse and Fly Repellent 4 Pack, Mouse Repellent Device

General Description The Ulisem Ultrasonic Pest Repeller uses automatic frequency conversion technology to emit ultrasonic waves from 20 to 55 kHz. These waves stimulate the auditory and nervous systems of mosquitoes, cockroaches, mice, mites, and other pests, effectively driving them away from your home. This device is safe for humans and pets, as long as it is placed out of range of sensitive ears, such as those of cats and dogs. Technical Specifications Ultrasonic Frequency: 20 to 55 kHz Coverage Area: Up to 80 to 120 square meters Recommended Installation: 10-30 inches from the floor Compatibility and Accessories Sold in a pack of 4 ultrasonic pest repellers Installation Simply plug in the pest repeller to operate. Avoid placing obstructions within 1 meter of the device. Use Ideal for use in homes, warehouses, offices, supermarkets, hotels, etc. For areas with a serious infestation, it is advisable to install several devices. Other information