1. This product is variable frequency ultrasound, deratization sffect fast and lasting 2. This product is lower power consumpption 3. This product: waterproof; flame retardant; resisitance to high temperature 4. This product is made by the frequency of ultrasonic wave on rat and pests, and the car will not produce any interference to the human body 5. This product is designed with the power switch, in case of not to use only need to shut down power supply switch product
