Abstract: A device that houses and mounts transponders on a motorcycle, allowing the motorcycle to pass through an ETC system without the need to stop and pay the toll, thus reducing the dangers and traffic slowdowns often associated with motorcycles and ETC systems, is disclosed. The device is configured to house an ETC system transponder that can be detachably mounted on a motorcycle. The device does not require permanent mountings to be placed on the motorcycle. A component of the device can serve as a wallet or a drink holder when not mounted on the motorcycle.