How to use. To start using. Tickless bathe your pet with a tick flea shampoo and remove any remaining parasites. Place the device on the collar and remove the tab to activate the device 4 red flashes will indicate that the device is on. You can verify its continued operation at any time by pressing the button and confirming that the. LED flashes in response. At normal temperatures the device can keep parasites away for 6-12 months after activation. To ensure its effectiveness the device should remain affixed to the animal at all times. If you remove the animals collar at home we recommend using our. Tickless. Home device. WARNING. While not waterproof the product is highly resistant to moisture. IP31. If the device gets wet it should be dried immediately to prevent water damage. Due to its small size keep out of reach of young children. Effectiveness depends on the condition of the animals coat as well as the number of parasites present in the area. In areas heavily populated by ticks 100 protection is not guaranteed. Not suitable for removing ticks or fleas from pets that have already been infected. Do not obstruct the emitted ultrasonic waves.