Theory
it emits ultrasonic wave at a frequency to repel pest,one of our advantage is that powered by solar,convert solar enery into rechatgeable battery.
Frequency A ( 7HKZ)Mosquitoes, fleas
Frequency B ( 10HKZ) Flies,mice,rats
Frequency C( 12HKZ) Cockroaches
Wide usage:
home, car, outdoor,especially useful for mountain climbing, fishing, camping, picnic, tourism,especialy can charged in the car.
15 days