Veterinary technical means Arpalit Cat electronic repellent is suitable for cats of all sizes and all ages. It is also used for older and weak animals susceptible to thedisease at the time of breast-feeding for kittens and animal Dweller in the home.Electronic insect repellent contains a microchip that issues ultrasonic pulses at a frequency of 40 kHz, inaudible to humans and animals. Short ultrasonic pulsesinterfere and repel parasites within 3 m from the animal and thus prevent the attack.