Marvo SG-201 USB 2.0 Powered Multimedia Computer Speakers With Surround Subwoofer Heavy Bass for PC/Laptops/Computer (Red) Computer speakers:USB powered, wired speaker with 3.5mm plug Computer speaker:Total RMS Power: 7W (3.5 per speaker)with subwoofer USB 2.0 Speaker: Volume control with On/Standby; Multimedia speaker:Frequency response: 120Hz - 20KHz | Signal-to-noise ratio: &gt; 80dB Gaming speaker:Ships in Certified Frustration-Free Packaging