Class IIIa, professional, hi-tech, dual featured, 5 mW laser pen with solid state diode. Both continuous and pulsed mode (2 Hz) are offered in the same unit. A switch toggles the unit between continuous and pulsed mode. The unit will project a visible, coherent, bright red 670nm infrared laser beam 65 feet in a well lit room (300 feet in a dark room). Compact, lightweight and ergonomically shaped for easy and accurate use. Unit includes a black nylon travel case with Velcro enclosure. Measures 5 in x 1.2in x 0.8in and weighs 2.2 oz.(unit only with batteries). Uses 2 standard AAA 1.5 volt batteries (included).