Introducing our {Upgraded version of powerful ultrasonic insect repellent}! As a factory specializing in innovative solutions, we have crafted this cutting-edge device to provide maximum protection against pesky insects. With advanced ultrasonic technology, it emits powerful yet harmless sound waves, effectively repelling insects without chemicals or odors. Designed for convenience, our repellent is portable, easy to use, and covers a wide area for comprehensive insect control. Say goodbye to irritating bug bites and hello to a bug-free environment!