LNKOO 2.4 GHz Laser Flip Pen Wireless RF PPT Controlor Presentation Pen Presentation Presenter Mouse Remote Control USB Flip Laser Pointer Pen Environmentally friendly ABS plastics; Scientific ergonomic design; Built-in docking bay stores receiver for easy pack up and portability One-touch keys easy to control slideshow. Buttons: laser pointer, page up, page down, launch slide show, black screen A red laser pointer that's easy to see against most backgrounds, highlight key areas of your slides,super easy to use to take your eyes of your audience. Wireless remote control distance range up to 39 feet (12 meters), so you can free to move around the room and interact with your audience Support options: Supports MS Word, Excel, PowerPoint, ACD See, website, iWork (Keynote & Numbers & Pages) etc; Supported OS: win 2000, XP, Vista, Win7? Win8?Win10?MAC OS, Linux; For MacBook on OS X 10.11 El Cap, plug the usb receiver into laptop, it will come out a box, and then you can select 101or104 option.