The CALISTO 620 Plantronics Bluetooth Speakerphone is a sleek black device that offers surround sound formats with THX technology. It features Bluetooth connectivity, USB audio inputs, and is compatible with Microsoft products. This never-used speakerphone comes in an open box and includes a charger, making it a convenient and high-quality addition to your computer setup. With its compact design and durable plastic material, this Bluetooth speakerphone from Plantronics is a reliable option for enhancing your audio experience.