... of 60-80meter 2.can drive fly, mosquito,and mouse. 3.It is safe ,environmental-protective odorles Safe ... square meters.2.It can drive fly, mosquito,and mouse.3.The ultrasonic waves that it emits have ... no damage to the human beings and the household pets.Besides,It has no interference ... appliances.4.It is safe ,environmental-protective ,and odorless.5.Low power consumption,the total power ...