12V Car Ultrasonic Mouse Repeller Auto Engine Bay Non-Toxic Electric Rat Mice Rodent Repellent Descriptions: This repeller uses a MCU chip to generate an ultrasonic frequency of 24KHz, which can effectively stimulate the auditory system and nervous system of mice, so that they feels uncomfortable and unbearable. Keep them away from the sound source, achieving the purpose of repelling.
Use effect process: Usually, after about 2 weeks mice will become irritated and snarl everywhere. At this time, the feces of mice begin to change from "thin" to "thick", which indicate sphysiologic derangement, bad appetite and weak immunity. Of course, some mice begen to flee the scene. After another month, you may observe a more serious state. By then, mice become stupid, listless, loss of appetite, loss of ability to reproduce and invade, the action is very slow, can be easily trampled to death. After 1-2 months, mice began to decrease rapidly until they disappeare.
Instructions: 1. It can be fixed in the engine compartment with screws or straps. First clean the car, then install the repeller on either side of the engine compartment, facing the other side. The repeller panel is recommended to face vertically to the side of the engine, otherwise it will influence effect. 2. You can also put it directly into the engine compartment when parking. But you must remember to take the repeller out before driving, otherwise it will fall! 3. It can be placed directly into the cab, but less effective than in engine bay.
Attention: This product can be effective after a few days of use, but it can only be seen after 3-4 weeks of continuous use. In the beginning, there may be a more active mouse, don't worry, this is because the mouse is stimulated. Performance, after a while, the mice will be less and less until they disappear completely.
Notes: 1. There may be slight size deviations due to manual measurement, different measuring methods and tools. 2. The picture may not reflect the actual color of the item because of different photographing light, angle and display monitor.