Typhoon Notebook USB Speakers. Connectivity technology: Wired. Compatible operating systems: Windows 98SE/ME/2000/XP, Minimum processor: Intel Pentium III, Minimum RAM: 128 MB. Dimensions (WxDxH): 35 x 20 x 110 mm, Audio output channels: 2.0, Satellite speaker frequency range: 220 - 20000 Hz