Trust Wireless Presenter TK-3300p, USB, Black, Silver Trust Wireless Presenter TK-3300p. Wireless receiver interface: USB. Product color: Black, Silver. Battery technology: Alkaline, Battery type: AAA. Compatible operating systems: Windows 98SE, ME, 2000, XP & 2003. Dimensions (WxDxH): 2.01 x 4.72 x 1.77" (51 x 120 x 45 mm) https://www.techradar.com/reviews/pc-mac/peripherals/input-devices/keyboards/trust-wireless-presenter-tk-3300p-52211/review Wireless presenters are great when youre addressing a crowd. The freedom to move around and still control your computer means you engage with the audience rather than wrestle with the technology.Trusts Wireless Presenter is a great example. Fitting s... Easy to set up and use, Impressive range Wireless presenters are great when youre addressing a crowd. The freedom to move around and still control your computer means you engage with the audience rather than wrestle with the technology.Trusts Wireless Presenter is a great example. Fitting s...