Product Description: This is an AC adapter (power adapter) made by BOSE. Since the operation has not been confirmed, it is being sold as a junk item. Weight: Approximately 190g (when not packaged) This is a used item stored at home. Please understand that there may be some dirt, scratches, and minor imperfections. - Brand: BOSE - Model: SPS-5 - Input Voltage: AC100V 50/60Hz 44VA - Output Voltage: DC12V 2A