Regarding Transactions: * We are unable to negotiate prices for this product. * Returns and refunds are not accepted after purchase for used items. * Please purchase after you are satisfied with the product condition. Instant purchase is OK. Even if there are exchanges in the comments section, we will prioritize the person who purchases first. Please consider purchasing after understanding that this is a used item. For detailed specifications and functions, please refer to the official product HP. ■ Product Name Focusrite ISA One Microphone Preamp ■ Description Used in an indoor environment, with no pets and no smoking. Although it is a used item, there is a feeling of use, but I think it is in a relatively clean condition. Power-on has been confirmed, and there were no problems with the operation as a microphone preamp. ■ Shop Description A microphone preamp using the ISA series' traditional Lundahl L1538 transformer. It is a standard model that achieves a compact size and low price while maintaining the quality. Regarding Condition: * Due to being a used item, there are fine scratches and signs of use. * Please be sure to check the photos (especially the 2nd and 3rd photos). * Please purchase after you are satisfied with the condition of the photos. Bonus: * 3P plug → 2P conversion adapter (with noise filter) will be included. ※ Please refrain from purchasing if you are sensitive to details.