**********Environmentally friendly ABS plastics; Scientific ergonomic design; Built-in docking bay stores receiver for easy pack up and portability*****Battery Not Includes; 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, 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), Google sildes, Prezi, etc;
Supported OS: Win2000, 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.