Enjoy music and movies on your laptop or desktop with quality sound with the Altec Lansing BXR1220 computer speakers. The drivers, enclosures and electronics of these Altec Computer speakers are aligned in perfect balance, which aids in delivering superior sound. These Altec Lansing speakers are shielded and do not create any interference with the signals when placed next to audio monitors. These Altec Computer speakers do not need any external power source as they can be powered by your computer's USB port. The built-in power and volume controls on these Altec Lansing speakers make it easily operable. The superior sound output of the Altec Lansing BXR1220 gives your games a realistic touch.