Replacement model Plantronics.Audio 655 USB Enter a zone of pure audio extravagance, where plush, supple comfort and bass-enriched resonance redefine the multimedia experience. The .Audio 650 USB is ideal for gaming, music, Internet talk, video conferencing, and voice applications. It features 40mm speakers that convey music and gaming with dynamic bass response all with dual connectivity: analog or USB, it's your choice.