<p>This 2.4GHz Wireless Remote Red Laser Pointer Presentation is small, exquisite and portable. It has richer applications, you can easily point to the PPT or blackboard in any corner of the classroom with it.</p> <ul> <li> <p>Ergonomic buttons for comfortable operation</p> </li> <li> <p>2.4G universal channel, about 10m effective range</p> </li> <li> <p>Supports MS word, excel, PowerPoint, ACD View, website etc. with page up and down&nbsp;function&nbsp;</p> </li> <li> <p>Makes your events or presentation seem more dynamic&nbsp;</p> </li> <li> <p>Supports previous, next, display, black screen, full screen&nbsp;functions</p> </li> <li> <p>Plug and play, no drivers and software needed</p> </li> <li> <p>Hide in USB receiver</p> </li> </ul> <p><strong>Specifications:</strong></p> <ul> <li> <p>Effective distance:&nbsp;about 10m</p> </li> <li> <p>Power supply: 1 x AAA battery (not included)</p> </li> <li> <p>Switch: button</p> </li> <li> <p>Operating system: Microsoft Windows 2000 / XP / Vista system, Windows/Mac OS/Linux/Android</p> </li> </ul>