Thank you for viewing. This is a junk item, BOSE Frames. Regarding the condition, currently, no sound is produced. While power is supplied, when the temple part is opened, the power is cut off, making it unusable. It is likely due to poor internal contact, but the cause is unknown. Only the main unit and case are provided; no instruction manual is included. How about using it as sunglasses, for parts, or as a display item for your collection? Please consider purchasing. We are not responsible for any problems after purchase. Please be aware of this beforehand. If you have any questions, please contact us in the comment section. Thank you for your consideration.