The Twelve South BassJump MacBook USB Portable Subwoofer Speaker is a compact and portable speaker designed specifically for MacBook models. It has a sleek black cube shape and is made of durable plastic material. This subwoofer speaker delivers powerful low-frequency bass audio through USB connectivity, making it easy to use with your MacBook for an enhanced audio experience. With compatibility for various surround sound formats and a portable design, this Twelve South BassJump MacBook is a convenient and high-quality addition to your computer setup.