Systems and methods for managing inventory, including one or more devices, such as computers or other terminal devices and/or computer systems, for managing inventory through the supply chain and lifecycle of a product. The system and method may include features for receiving the same or similar information associated with a plurality of products from a manufacturer, a distributor, and/or a consumer or other user, and associating various information, such as product location, quantity, and/or condition information with the products via one or more RFID devices operating at a plurality of frequencies, at any one or more locations, by any one or more devices, during the product lifecycle.