More Sound. More Space. Add rich stereo audio to select E-Series monitors, Series 5 Pro monitors and P-Series monitors[1] and keep a clean, clutter-free desk with the HP S11 Speaker Bar, which fits neatly underneath the display head and connects through USB. * Simply attach the speaker bar below your display’s bottom bezel through the slots designed for a perfect fit and connect to the display’s integrated USB port. No tools or software driver required. * Enjoy clear dual-speaker stereo sound for your media and more, and use the line-in port to connect your phone or player directly to the speaker bar. A headphone jack lets you listen without disturbing your colleagues. * Get the reassurance of a one-year limited warranty.[2]