Used only a few times at home after purchase, and then stored in the box. (Non-smoker, no pets.) Box and accessories are complete. Operation has been confirmed. To prevent any issues, please confirm the condition and specifications of the product before making a purchase. The following is a product description: The Ampero Mini is the most compact model in the Ampero family. It focuses on essential I/O and packs the uncompromising Ampero sound into a small, rugged aluminum case.