Aokeman UltraSonic Rat & Mice Repellent Device Ao-201 Wired Sensor Security System

Aokeman modern ultrasonic electronic tech can stimulate the nervous systems and hearing system of the mouse in the control field, so that the mouse feels uncomfortable and fretful, will get away soon. It has variable and fixed frequency. When the light is red it makes the variable frequency:the greenlight means fixed frequency.You change to use it that can make the mouse feel more uncomfortable and fretful. They absorb any acoustic signals, and with regard to ultrasound, this is expressed more intensely than for sounds heard by people. Therefore, by placing the device behind blackout curtains, you will reduce the area of its action. It has 2 work programs. The first one should be turned on in the first weeks of scaring away - this will create ultrasound of a constant frequency at full volume. In the following months, it is worth using the second program - this generates ultrasound of a variable frequency, but with a lower volume. The absence of rodents is guaranteed as long as the device is plugged into a 220 V network. If you turn it off, the deterrent effect will disappear. Notice: The ultrasonic sound can not to go through with the walls and furniture..so please make sure to use the product without so many obstacles.It is best to plug into the 1.product near to the floor (less than 20 centimeters) and do not make the speaker face to the ceiling 2.you can see the good effect after 5-7 days without stop 3.No Toxic , no harm, energy saving and environmental.