Specifications: Material: PC+ABS Color: Black Frequency Range: 12KHz-24KHz < p>Range of use: 40㎡ Rated working voltage: DC12V Size: 8.5x8.1x4.1cm Weight: 78g Package includes: 1 x Ultrasonic Repellent 1 x cable 1x user manual Working mode: Power-on self-test: When power on initial is activated, the product enters self-inspection. First, the red light flashes three times, then the white light flashes three times, then the alarm sounds. < /p> Installation method: Open the car engine compartment cover,fix the product in a suitable position inside the cabin, then connect the end of the red line with the fuse to the positive pole of the car battery and the black wire to the negative pole. When e the switch button is turned on, the product enters the self-test mode, then the work mode. Technical description
