These speakers have met strict performance standards to achieve THX® certification-for quality you can count on. With 200 watts (RMS) of power, you can listen as loud as you want to. You'll hear-and feel-immersive audio that brings music, movies, and games to life. RCA and 3.5 mm inputs-and a built-in headphone jack-make it easy to get great sound from up to three audio devices. Your powerful 2.1 system delivers easy, two-satellite setup and a powerful subwoofer for big sound-even in large spaces. You're in command with integrated controls-dial the volume and bass up or down to customize your listening experience.