The product is a vintage Acoustic Research Teledyne 93s speaker, known for its high-quality sound performance. This model has been tested and confirmed to be in working order. Perfect for audio enthusiasts looking to add a vintage touch to their collection, the Acoustic Research 93s is a reliable choice with proven results. PLEASE SEE VIDEO FOR FUNCTIONALITY & PICTURES FOR CONDITION! If you have any questions, please feel free to contact me & t ake a look at my other Listing! Thank you for looking.