Bye critter

Bye Critter is a brand of ultrasonic pest repellers designed to drive away pests from homes without using chemicals or traps. It utilizes electromagnetic and ultrasonic technology to create an uncomfortable environment for pests like rodents, cockroaches, and insects, without being detectable to humans or pets. The devices are intended to be plugged into electrical outlets and are effective within a certain range (typically 800 sq ft per device), though they do not penetrate walls