YOUR TAX-DEDUCTIBLE CONTRIBUTION PURCHASES THIS ITEM FOR OCS - THANK YOU! The GOgroove SonaWAVE O2 2.0-channel speakers deliver rich SonusMAX sound with enhanced bass. The dual side-firing passive woofers deliver deep bass while the front-loaded 2-inch speaker drivers pump out rich, full-range audio you can feel as well as hear. Plug-N-Play USB design powers from USB port with no external power adapters required. Rear-loaded volume control allows for quick audio adjustment. 3.5mm audio connection plays music from computer or other audio devices like MP3 players.