This powerful Laser Pointer gives you powerful control for high-impact presentations. The brilliant green laser pointer is easy to see, even on flat panel displays, projection screens, and in brightly lit rooms. Manage your time with silent, vibrating alerts and controls that are easy to set and adjust. Move about for greater impact, with a range of up to 100 feet (30 meters) you can cover every corner of the room. Navigate through your presentation with confidence thanks to intuitive slideshow controls you can find easily by touch. A storable plug-and-play wireless receiver makes it simple to get started—there’s no software to install. And when you’re through, the receiver stores inside the presenter to make packing up easy.

The high powered laser , with a brilliant green laser pointer, puts you in complete control of your presentation and makes it easy to direct your audience's attention to specific information from across the room - even on flat panel displays and in brightly lit rooms. To keep you focused on the crowd and not the clock, the Professional Presenter R800 provides an easy-to-set timer with silent, vibrating alerts. When you're moving around the room to engage your audience, at a range of up to 100 feet (30 meters), a reception - level indicator on the LCD keeps you from wandering too far. The intuitive slideshow controls help you find buttons easily by touch, and the compact design allows you to take it with you wherever you go. Plus the contoured shape feels great in your hand, so you'll be comfortable and confident that your presentations will make a lasting impression with your audience.

Your slideshow presentation is ready. The room is full. And with your wireless laser pointer in hand, you're set to grab hold of your audience. Aim the laser pointer at the screen and everyone sees your point. The brilliant Green Laser light is strong enough to be seen clearly, even across a large conference hall. Move smoothly and confidently from slide to slide with intuitive one-touch controls. Focus on your presentation, instead of the clock, with an easy-to-set timer and vibrating alerts to help you manage your time. And with no wires or cables, there's nothing to hold you back from moving around and working the room. Whether you're making a sales presentation in a hotel ballroom or giving a professional lecture in a 2,000-seat auditorium, you'll get and keep their attention from first slide to last.

I have purchased many Laser Sight before, that where next to impossible to adjust and even then every time you fired a shoot the laser sight would move. After buying one Barska, I ordered 5 more. This is a top of the line laser sight. It is very easy to adjust and does not move at all no matter how many shoots you fire. I have installed 4 of these on the front of the barrels of AK-47s and Ruger Mini-14s, where the shock is 10 times more than if mounted on the receiver. They still stay right on target. What more could you possibly want from a laser sight. Even through this Barska is 5mW, just like all the other ones I got, for some reason it is allot brighter. Weather they are cheating or just making a way better beam of light, they are brighter.

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http://www.imfaceplate.com/lasereshop/development-of-lasers