Introducing our upgraded version of powerful ultrasonic insect repellent, the ultimate solution to keep your home and office free from pesky insects. Our product emits high frequency ultrasonic waves that repel mosquitoes, flies, cockroaches and other common insects. The device is safe and eco-friendly, emitting no toxins or chemicals. Our factory produces high quality products, using the latest technology to ensure maximum effectiveness. Say goodbye to chemical sprays and sticky traps and switch to our ultrasonic insect repellent for a peaceful, bug-free environment.