Rodent, Rat Mouse Mice Hood Animal Pest Repellent Ultrasonic Rat Deterrent 220VSTRONG RODENT REPELLENT FOR MICE MARTEN RATS 220V MOST IMPORTANT FEATURES: An effective, proven deterrent for martens, rats, weasels and mice. The device emits variable ultrasound, which creates an unpleasant, unbearable environment for the rodents, which prevents them from settling, staying close to the protected area. The device's electronic circuitry is fully transistorized, which guarantees high gain and durability. Similar deterrents offered in