To the best of my knowledge, this is one of the few USB rechargeable laser pointers on the market currently. It's not made in China like the majority of the laser pointers sold on eBay, it has a quality build and produces a more consistent output since they're made with APC (Auto power control) circuitry instead of ACC (Auto current control) circuitry which most units have. APC maintains a constant output power until the batteries die, thus eliminating the annoying power variations in brightness resulting from thermal effects on the diode and laser crystals as the pointer heats up. APC units are generally more for industrial use and more expensive to make than ACC units. All in all these are some pretty nice units for the price I'm selling them at. They have many uses such as astronomy, teachers/presentations, bird watchers, tour guides, construction workers, scientific, military, security applications, forensics Investigations, playing with pets (Dogs and Cats love chasing the laser dot) etc... etc... Red laser pointers only project a dot, not a visible beam like some green lasers do in the dark. When they need to be charged, simply use the included cable and plug into any available USB port on your computer. A status light will show when the recharge cycle is complete. The picture above will vary in size depending on your screen resolution that you're running your monitor at. Please read below under the features area for the exact measurements of this item. These can retail for as high as $39 each, but buying in large quantities allows me to pass the savings on to my customers and offer them at a greatly discounted WHOLESALE price. I have these custom made directly from the manufacturer, so my prices and quality can't be touched. Whether you purchase this red model or the more powerful professional green model which I also sell, you'll be getting one of the best designed, highest quality lasers aroun, which you'll find here at Genaldi.com!