Features: 1. Working principle: Portable electronic insect repellent based on physical principles, using electronic simulation technology to achieve the effect of repelling ticks, fleas, lice, and pest. By emitting ultrasonic waves that can stimulate their brains and sympathetic nerves, they cannot tolerate those sound waves and staying away from pets and people. 2. Intelligent frequency conversion chip can control the emission of ultrasonic generator 8 different ultrasonic wave bands and intelligent random switching of different band frequencies. 3. Small and light: Protect your pet within the coverage of 3-10 meters in diameter Can cover all parts of pet's body,outdoor play no longer need to worry about. 4. With colorful light wave,pet can be seen all the time Even if you walk your dog at night,you don't have to worry about not seeing your pet in the dark So as to reduce the risk of loss. 5. Ultrasonic physical repelling of ticks, fleas, lice and mosquitoes.   Notice: 1.Actual color may be slightly different from the image due to different monitor and light effect 2.Please allow 1-3cm deviation due to manual measurement Description: Material:ABS Size:5.5*3.5*1cm Package List: 1 x Electronic Insect Repellent