We are very pleased to announce we have now become part of the American Canine Association, Inc. and are now monitoring 5.7 million dogs in North America, Central America, and the Caribbean Islands. ACA's Microchip Animal Rapid Recovery Services (M.A.R.R.S.) provides Universal ISO 11784/11785 microchips for pet identification. ACA's (M.A.R.R.S.) microchips operate on 134.2Khz signal and are recognized worldwide. Unlike other pet microchip providing companies, ACA's (M.A.R.R.S.) microchips can be read by all manufacturers universal scanners. ACA's Microchip Animal Rapid Recovery Services (M.A.R.R.S) provides full United States based 24-hour/7-days a week Live Customer Support to reunite your pet back to the safety of your loving arms.