The ANKER Ultra Clear Bluetooth Portable Conference Speaker Speakerphone is a sleek and powerful device designed for seamless and clear communication. With a 2.0 channel system configuration and Dolby Digital surround sound formats, this black cube-shaped speaker provides high-quality audio for all your calls and meetings. It is equipped with wireless connectivity, Bluetooth capabilities, and is compatible with a universal range of devices. With a 6700mAh battery capacity and 5W RMS power, this Anker speaker offers 24 hours of continuous call time and comes with a 2-year manufacturer warranty for peace of mind.