LR12GR-Pro - A Professional Wireless Presenter with Powerful Green Laser Pointer and Gyration Air Mouse all built into one unit; A must for Professional Presentations * Unique and Practical hot key functions include: page down, page up, play/ESC, screen blank/back and full function gyration air mouse with Power Point Pen/Eraser function. Sure to assist you in making a smooth and professional presentation. * Sturdily constructed body with Big Button control-key and Rubber Coated finish prevents slipping and offers the most advantageous assistance for your presentation and training. Just hold the ergonomic device in your palm like a remote controller and the cursor will easily follow your hand movement. The unique pen/eraser function is activated by the air mouse and helps you to draw a line or enables you to free draw a remark on any slide to highlight key points in your presentation. * Works flawlessly on Mac, Windows. OS supported for Windows 8, Windows 7, Vista, XP, OS Mac 9.0 or later models. Plug-and-play, no software required, docking bay for receiver, two AAA batteries (included) for 6 hours operation time. * The Infinite green laser is very powerful and visible but also eye safe and approved by the FDA for safety features. Other brands do not incorporate safety engineering in their laser products and are dangerous to the eye. Be safe and be sure you only use FDA approved products for the safety of you and your family.