Power-on confirmation only. Included: Power cable (non-genuine) Confirmation is limited to the operation described above. Other operations have not been checked. This is an as-is item. Please be aware that we do not guarantee any unchecked areas. Please refer to the manufacturer's website for details. https://www.audio-technica.co.jp/proaudio/product/ATUC-50CU I lack specialized knowledge, so I cannot answer technical questions. Please check the images and make your own judgment. This is a used, as-is item, and there is no manufacturer's warranty or operational guarantee. We do not provide any support for the equipment after the auction ends, so please bid only if you know how to handle it. Please refrain from bidding if you are concerned about the condition or are looking for a perfect product. We will not accept claims regarding parts not shown in the images or not reflected in the detailed images. The description reflects the current condition as confirmed during the listing's operational check. It does not guarantee complete operation or future performance. Management 335