Infiniter brand = superior performance. The choice of professionals. Infiniter’s most energy saving red laser pointer uses inexpensive AAA batteries that provide 40 hours of continuous run time. It can generate a laser beam with ultra bright light points up to a transmission distance of 500 meters. Simple to operate with a slender profile, which easily fits into a pocket or purse, the Infiniter 100 is the perfect product for business or other presentations. It is also a fun and useful product for those interested in astronomy. When not using it for work related jobs it is an entertaining and safe toy that will keep your cats or dogs busy for hours. Powered by 2 AAA batteries (INCLUDED). Made of strong and durable aircraft aluminum alloy.