Sony Srsd21x 2.1 Multimedia Speaker System SRSD21X Ideal for music and gaming these speakers turn your PC into a multimedia audio system with 20W output for an enhanced listening experience.20W total output power (satellites: 2W x 2; subwoofer: 16W)Full-range flat satellite speakers with 0.2 conesSubwoofer delivers a full bass soundIdeal for both music and gaming Magnetically shielded for placement near a TV or monitor Power switch and volume control on satellite speaker Flat-speaker design with clear stand Headphone jack for private listening Impedance: 4 ohms