The Philips SPA1330/37 Multimedia Speaker Subwoofer is a wired unit that produces Dolby Digital surround sound. This subwoofer is compatible with Philips products but lookup and make sure you have the correct satellite speakers to go with it. This listing is for the subwoofer ONLY and you will need the satellites to complete the speaker system. It has the power cord and the 3.5mm jack needed to power the other speakers. Let me know if you have any questions! I plugged it into my computer and it was making sound but only bass and low frequency. You need more speakers to complete the setup.
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