Description: Ultrasonic Rat Repeller for Vehicle is an effective and safe way to protects your car from pests and rodents, like rats, cockroaches, The range of 24-84 kHz ultrasonic keeps changing to avoid mosquito adaptation to a certain frequency. Use this pest repellent in your home, warehouse, office, garden, hotel, restaurant, cafe, etc. And forget about the pests. How to Use: 1. Switch on: Press the button once to start work, red light in the middle flash 3 times, The ultrasonic horn emits 50Hz frequency at first, and then circulates at 12khz-24khz frequency. 2.Switch off: Press the button for 5 seconds 3.Power supply: 1) Battery version: Install 4 * AA alkaline battery (Battery not included) 2) DC version: Attach to a car battery, connect the positive and negative poles, red lines are positive and black line is negative. or Power by 4 * AA battery (Not included) 3) USB version: USB cable or battery power supply (Battery not included) Specifications: Color: Black Version: Battery
