The Marco Polo system includes a hand-held portable locator, a collar tag, charger, quick start and user guides. Up to two additional collar tags can be added (sold separately) to allow monitoring and tracking of up to three pets. Collar tags weigh only 1.75 ounces and are suitable for use on pets 10 lbs and larger. Marco Polo’s unique tag addressing scheme ensures no interference with other Marco Polo systems. New tags can be added to a system at any time. The ultra-long battery life (up to 3 months) and no monthly services fees provide you with years of hassle-free, cost-free peace of mind. Compared to subscription-based products, Marco Polo will save you hundreds of dollars over the life of the system. When searching for your pet, Marco Polo acts like a personal radar system, scanning every inch of the surrounding area, including the interiors of homes and backyards. The system range is up to 2 miles in open conditions but, as with any 2-way radio system, varies with terrain and obstructions. If your pet is outside the system’s range you can continuously scan hundreds of acres of surrounding area as you drive or walk around. Once within range of your pet the Marco Polo locator will guide you directly to their exact location, within inches if necessary, even if they are injured or hiding. Select one of four safety zone ranges for your pet (in typical areas, smallest range is a 50 ft. radius). Receive warnings in less than 80 seconds when your pet wanders. Marco Polo is the perfect solution for protecting your pets while traveling. Your pet’s selected safety zone follows you as you move. No internet or cellular access is needed so you can take your pets with you to the most remote locations, knowing that you will be alerted quickly if they wander and easily track them if they become lost. With the peace of mind that Marco Polo provides you can read a book or take a nap knowing that your pets are being continually watched over.