<p>Button Function</p><p>Sensitivity</p><p>The switch and the sensitivity sensing distance are adjustable. Rotate the knob clockwise to increase the range of protection.</p><p>Frequency</p><p>This button is used to adjust the working mode.  </p><p>1. The gear position and frequency of the "Frequency" button are as follows:0: off.</p><p>2. 13.5KHZ-19.5KHZ Ultrasonic, drive away animals such as dogs, foxes, and crickets.</p><p>3. 19.5KHZ-28.5KHZ Ultrasonic, drive away animals such as cats, raccoons,baboons, skunks.</p><p>4. 400Hz-1000Hz vibration wave + buzzer (buzz), drive away mice, drive snakes and other animals.</p><p>5. LED strong flash + harsh sound (chirp), can drive away raccoons, boars,cockroaches and other animals.</p><p>6. All functions work at the same time. The first to fourth gear of the frequency work in tum, accompanied by 2 kinds of ultrasonic waves, vibration + buzzer (buzz), LED strong flash + harsh sound (chirp).</p><p>Note: The blue LED light is on: the product senses the animal.</p><p>Precautions</p><p>1. Humans may have some perception of ultrasound. Keep the product away from the living area. Do not place the product in areas where infants and children are active.</p><p>2. Do not block the infrared sensor detector. When cleaning the product,clean it with a soft cloth and soap. Do not use chemicals or corrosive objects to clean the product to prevent damage.</p><p>3. This machine should be installed on a flat or high-slope vertical installation,not on the ground, so as not to cause the entire machine to be soaked and damaged by the rain.</p><p>4. When charging with the included usb cable, there may be noise. It is recommended to turn off the battery. .</p><p>5. In case of long-term rainy weather, the adapter can be used for charging.</p>