A Certified Refurbished product is one thats been returned to Bose, for any reason. Its then thoroughly inspected, tested, and serviced to meet strict Bose sound quality standards - the same as a new product. Appearance is closely examined; products occasionally have minor, nearly imperceptible blemishes. All Refurbished products have the same warranty as new products, and are available only from Bose. Quantities are limited. - Microphones: Built-in Microphone. Sound Options: Speakerphone. Audio cable included: No. Entire Product System: 2" H x 7.06" W x 2.31" D (1.44 lb). Product Material: Aluminum, Plastic, Steel, Metal, Silicone. Battery Life: 12 hours. Battery Charge Time: 4 - SoundLink Mini II Special Edition - USB-C to USB-A cable