Fiche Technique Ultrasonic Mice and Rats, Ultrasonic Mouse Device, Ultrasonic Pest Repeller for Indoor Mouse Repellent Device for Insects, Mosquitoes, Cockroaches, Rats, Spiders – 4 Pack au Maroc Product description: Working Principle: The ultrasonic killer emits an ultrasonic frequency of 20-55 KHz, which destroys the insect the sense of smell,…