This product is a set of two wireless headphones designed for use with a Toyota DVD entertainment system. The headphones have a manufacturer part number of pt900-00031 and are a direct replacement fitment type. They are not a vintage or modified item and are not a non-domestic or custom bundle product. The headphones are branded as Toyota Wireless Headsets and are sold as a unit quantity of two. The product is not a performance part and is not designed for universal fitment.