360 DEGREE DETECTION RANGE: With a new and improved 3D design, our rodent repellers have 3 acoustic speakers and premium acoustic speakers to effectively detect and repel invasive pests from the surrounding area, reaching an extremely wide 360 degree radiation range. The maximum detection range is 200 square meters and the optimal distance is 180 square meters. HIGH SENSITIVITY AND FLASHING: Our ultrasonic rodent repeller uses different automatic frequencies and sensitive cycles to repel unwanted pests.9 LEDs flash alternately between red and white for effective detection of different animals such as mice, rats, mice, moles, voles, squirrels, chipmunks, foxes, spiders, ants and more. 4 operating modes: mouse and rat ultrasound can be manually switched between mode 1 and mode 4, and the volume can be freely adjusted. Please press the mode button to test different modes for best results. Mode 1 is a silent mode, only emits ultrasonic waves from 23.5 to 65 kHz, if your family is at home, we recommend to turn on this mode, it will not disturb your daily life. EASY TO INSTALL: The simple design of this rodent repeller makes it easy to install in kitchens, bedrooms, barns, gardens, nurseries and orchards. You just need to place it at a height of 20-50 cm above the ground. The device is perpendicular to the ground and the ultrasonic speaker is parallel to the ground. There should be no large obstacles within 1m of the front of the product. ????????[HUMANIZED] Our rodent repeller uses ultrasonic waves that are inaudible to the human ear and can only be heard by animals, but please rest assured that it won't cause any harm to your pets. It is recommended to turn on the machine for 24 hours. After 4 weeks of working with the system, there will be no more mice in your home.