Thank you for viewing. This is an ETC unit for motorcycles. It was removed when the motorcycle it was installed on was sold. It was working without any problems until it was removed. Currently, it is already set up for the previous vehicle. Please have it re-set up at your nearest motorcycle用品 store. All the removed parts, such as wiring, antenna, and LED indicator, are included, so you can use it without needing to buy anything else. Thank you for your consideration.