Altec Lansing VS2620 Speakers for Computers and MP3 Players (Black) Dynamic sound Dual 3" (75 mm) full-range speaker drivers matched with dual tuned 3" (75 mm) passive radiators deliver crisp full-spectrum audio with excellent bass. Built-in controls Power, volume, and tone controls are at your fingertips. AUX IN jack Lets you connect a portable CD, DVD, or MP3 player while linked to your computer Audio AlignmentDrivers, enclosure and electronics are balanced for optimum sound. Bold design Compact, angled speakers make a striking visual statement.