Restar LP0001 RF 2.4GHz Wireless USB PowerPoint PPT Presenter Remote Control Laser Flip Pen [LIFETIME WARRANTY] The laser pointer built-in docking bay stores receiver for easy pack up and portability; Environmentally friendly ABS plastics; Supplied through an AAA battery (not included), swift and easy change, high availability. One-touch keys easy to control slideshow. Buttons: laser pointer, page up, page down, TAB, enter. A red laser pointer that's easy to see against most backgrounds, highlight key areas of your slides. Wireless remote control distance range of 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; 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.