CANYON &lsquo;Powerslide&rsquo; Notebook/ PC Speakers - Laptop USB 2.0 speakers with colorful graffiti pattern USB 2.0 Speaker set, no power supply needed, FREE cool key chain included Ideal for your PC, notebook or netbook ,Easy access to volume and mute buttons Great sound quality for your music, games or movies Stereo, 3W, 100Hz-20kHz, USB 2.0 ,no power supply needed Warranty Term (month): 24 month , Validation Criteria:Serial Number.