Advanced: generate electromagnetic wave and ultrasonic wave at the same time.
Frequency: change constantly and intermittently, but not periodically.
LCD screen display in real time, easy to use.
Safe: use physical method, non-toxic, no harm to human beings or pets.
Touch switch design, can switch to all kinds of working mode.
Suitable for using in household, office, supermarket, hotel or storehouse, repelling pests effectively.