Genius introduces the rich stereo sound in a compact wood design, SP HF150 is a USB powered wooden speaker with four watts of total RMS power, delivering clear vibrant sound and deep bass reverberation. Even with a small package design, SPHF150 produces amazing sound quality and transforms one computer into superb hi-fi stereo sound system. One can use it just about anywhere with the notebook or PC, Simple to set up and control, these speakers make it easy to enjoy the music, movies and games. Just insert the USB plug to a PC/notebook for power and the 3.5 mm audio plug into the music playback device. Features Wood Design USB Powered Speakers Four Watts of output power Volume Control Works great with any computer system using a standard 3.5mm audio plug East Connection: Works with PC, Mac and ipod / MP3 players Available in three color trims - wood, black, and silver; and backed by a 1 year warranty, the SP-HF150 is priced at US $13.