Saitek A200 Portable 2.1 Speaker System True digital 2.1 stereo delivered through two 3W tweeters and 3W sub-woofer (RMS) Unique EAVS (Expanded Air Volume System) expands in use to provide impressive bass range and clarity Neodymium speaker magnets increase efficiency and reduce magnetic interference Integrated volume and on/off controls, plus EAVS activation Connect to all portable media players (MP3, CD, DVD, MPEG4, Sony PSP) and laptops via 3.5mm jack audio cable (provided)