Fujitsu Presenter USB III, USB, 393.7" (10 m)
Fujitsu Presenter USB III. Wireless receiver interface: USB, Frequency band: 2.4 GHz, Wireless range: 393.7" (10 m). Battery type: AAA. Compatible operating systems: Microsoft Windows 2000, Microsoft Windows Me, Microsoft Windows XP. Weight: 1.76 oz (50 g). Dimensions (WxDxH): 3.74 x 1.57 x 0.65" (95 x 40 x 16.5 mm)