Free yourself from the inconvenience of using the mouse to present slides during the presentation. It releases lecturers from limitations of distance or directions and allows lecturers to teach away from dais and react with students freely.

Being wireless also brings along the benefits of moving away from the computer/notebook to have a closer interaction with the rest of the audience. The USB Wireless Presenter can be found at Gadget4all for $22 each.

Wireless Presenter: [Gadget4all] - [Via]