Digital speaker system offers a 2.0 USB Connection for power and advanced digital-quality audio. System requires no other cables. A single 4' USB cable supplies both audio and power. Compact size delivers high-quality audio without using much space. Satellite-base design offers greater stability on your desktop. Built-in controls allow you to easily adjust volume and include a digital-power indicator. Speakers offer a 90 Hz-20 kHz frequency response and 2" dynamic drivers. Speaker system includes two speakers with integrated cables.