... magnet systems and lightweight diaphragm to provide high-quality sound 7. Powerful bass and increased signal levels for modern rhythm musicSpecifications ... 4. CE,ROSH,FCC 5. Use for PS3,XBOX,PC,TV Technical Specification Speaker size 40mm Frequency range 20-20,000Hz Speaker ... the computer system:win 2000,win XP,win vista,win 7 *the usb interface:high speed usb2.0 *support the memory ...