About this item NEW VERSION PRESENTATIONS REMOTE CONTROL: 2.4GHz RF wireless technology, eco-friendly ABS plastics, upgrade from a mini portable receiver in space-saving metal, strong and durable, it can also more quickly identify computer systems. Specially increase LED button indicators for easy control. RED POWERFUL WIRELESS PRESENTER: Powerpoint/Prezi/Propresenter and other popular software function switch, press Up and Down key simultaneously to toggle between Up and Down, Left and Right, PgUp& PgDn (keypad key), also has memory function, automatically change the mode you used last time. The constant red laser pointer presenter is easy to see on any presentation screen (not recommended for LED, LCD screens). Note: Please do not direct it to the eyes of people or animals, please use it correctly. SCIENTIFIC ERGONOMIC ONE-PIECE DESIGN AND UNIVERSAL COMPATIBILITY: Built-in receiver, not easy to lose, port USB3. 0, just plug and play, no need to install. This clicker PPT supports MS Word, Excel, PowerPoint, Prezi, Propresenter, ACD See, iWork (Keynote & Numbers & Pages) Google Slide, supports Windows10, Linux, Mac OS, Meet Different Laptops, Ipad, Presentation Electronic Whiteboards , Projectors. Especially for teachers, tutors, lecturers and lecturers, it helps a lot. PACKAGE INCLUDES: 1 KUIYN K100B wireless presenter, 1 USB receiver, 1 instruction manual.