Refer the user manual below for troubleshooting BasXPort technology enhances the low frequency response without the bulkiness of a subwoofer. Convenient front access to volume, bass, treble and input jacks. Connects to your computer, MP3 player, LCD TV or other stereo audio sources. Comes with a power-saving feature that puts the speaker on standby when audio is not detected, and wakes it up automatically when audio is played. Connector Type : Line-In, AUX-in Fill your room with vibrant audio from the GigaWorks T40 Series II speakers, the enhanced model of the award-winning GigaWorksT40. The GigaWorks T40 Series II propels audio enjoyment into the next level of acoustic fidelity. There's no need for a physical subwoofer as the three-driver Midrange-Tweeter-Midrange (MTM) audiophile configuration comes with BasXPort technology - delivering excellent dynamics with rich extended bass. While the silk dome tweeter with dual woven glass fiber drivers produces crystal clear highs with full range audio, the whole system also offers an improved power output of 16W RMS per satellite. Brand Creative SKU 100836365_NP-1021344598