SANOXY® Wireless RF Red Laser PointerAbout SANOXY®SANOXY® is trademarked brand. Exclusively marketed by authorized resellers on amazon.com. Be sure to find the logo on both product and package to ensure product warranty by SANOXY®SANOXY® offers variety of consumer technology solutions such as cables & adapters, computer networking devices, and Touch Screen Smart Phone Accessories, Presentation and Stylus PensIntroductionWireless Remote control USB PowerPoint PPT Presenter Flip Laser Pointer PenThis item is a great tool for PowerPoint presentations, with it, you don"t need to stand beside your computer or have an additional person click the slide for you.You can control the PPT wirelessly.It is the best choice for teachers, professors, doctors, students, business professionals and so on.SpecificationUSB Presentation Remote Control;Control Model: Wireless;Frequency: 433MHz;Laser Distance: >200m;Control distance: 15m;Operation system:Windows98/Me/2000/XP,Mac OS,Linux.