Logitech S150 Digital Stereo USB Speaker SystemThe Logitech S150 Digital USB Stereo Speaker System is a simple to use speaker system for your laptop or desktop computer. Experience clutter-free audio input and power directly through a single USB cable connection to your computer, with no power adapter required! Simple to use volume and mute buttons are located on the right side speak to easily adjust your listening volume. There really is no easier way to add stereo sound to your laptop or desktop computer than the S150 Digital USB Stereo Speaker System from Logitech.Please Note: These are only compatible with computer systems with an open USB port, they do not have a 3.5mm headphone style jack.