The SP-U115, are powered through a USB port from a desktop/notebook. They use 50mm speaker drivers for loud and clear sound performance for a total of 1.5 watts RMS.
It has a convenient knob on the side to adjust the volume. Just insert the USB plug to a PC/notebook for power and the 3.5mm audio plug into music playback device, such as a PC, notebook, MP3 or CD player and enjoy music with the SP-U115.
12 Month Return to Base Warranty
|Driver Unit-Subwoofer||50 x 50 mm, 8 ohm|
|Signal-to-Noise Ratio||80 dB|
|Frequency Response||200 Hz~18K Hz|