Soundshieldtm is the ideal alternative solution for fighting against ticks and fleas without using harmful chemicals. It will help to minimize the numbers of ticks and fleas by ultrasonic waves that pets and humans can’t hear, but irritate the nervous system of ticks and fleas. The effectiveness has been researched and proven by one of the oldest universities in the world for veterinary medicine, the university of camerino in italy. This repeller uses the latest advanced technology that emits intense ultrasonic waves withina 1. 5m radius at high-level frequencies to constantly deter ticks and fleas. Soundshield™ is 100% safe and inaudible to both humansand pets. Tested and proven effective for up to eight months of continuous coverage