The GigaWorks T40 Series II Speakers from Creative are designed to deliver stellar-quality audio for your computer, TV, or gaming system. Each speaker features two dual-woven glass fiber drivers as well as a silk dome tweeter. As such, the speakers deliver crystal clear highs as well as full-range audio. In addition, the speakers feature the built-in BasXPort technology that allows the speakers to deliver rich, exceptional bass without the need for a subwoofer. The frequency range for the speakers is 50Hz to 20kHz. For managing your sound, there are three different knobs: one for treble, bass, and volume.