Dispositivo ultrasónico para repeler mosquitos y eliminar insectos. Su diseño es compacto y moderno. - Tecnología ultrasónica. - Función insecticida. Ultrasonic mosquito repellent / Single,insect killer Pests will now scramble to find a way out of your home! We have refined the ultrasonic frequency range and increased its intensity so that pests will be driven away from your home. 2. This ultrasonic pest repellent uses the latest dual chip, emitting stronger and more concentrated ultrasonic waves that make pests more difficult to immunize than before. This ultrasonic frequency range can irritate and disrupt the brain and auditory n