Thank you for viewing. Software only. Operation confirmed. If the connection with the main unit is poor, please clean it with a cotton swab. There are scratches and stains from use, so please check the photos. Please purchase after confirming the condition and understanding it. Please refrain from purchasing if you are nervous or seeking perfection. Please purchase only if you understand that this is a used item. To avoid any trouble in the transaction, please purchase only if you agree to the following points. (Purchase = Agreement)