Tickless Pet Ultrasonic Tick and Flea Repeller, this small electronic device is designed to hang around as a pendant to a collar. It is an ideal way to keep ticks and fleas away from your dogs and cats a natural way. It is completely non-toxic, it does not release any chemical substances or odors for the pet or to pet parent. It works by effuses a series of ultrasound impulses which remove the ticks and fleas from the pets. The battery of the repellent lasts for 10 to 12 months, which is ideally the length of an entire flea & tick season! It is a waterproof device, however, it should be dried after getting wet. Ticks and Fleas for painful for the pet and the pet parent both.