The Plantronics Calisto 610 Portable Speakerphone in Black is a cube-shaped device that offers Bluetooth and touch control features. With an RMS power of 1W, this speakerphone is lightweight at 2.2 Oz and comes in a generic box. It is compatible with a universal range of devices and has a USB audio input for convenient connectivity. The Calisto 610 is a versatile portable speaker system that can enhance your communication and multimedia experience wherever you go.