DESCRIPTION:<br /><br />    The light can point at any targets， such as photos， blackboard， video monitors and so on<br />    Press the push button to turn it on，release the push button to shut if off automatically<br />    Expected Life: over 5，000 hours<br />    Operation Voltage:3V<br />    Laser Range: About 49 fee<br />    Laser Output power: 5mW<br />    Power Supply: 2 x AAA batteries(not included)<br />    Dimension :14 x 160mm<br />    Body Color: Black<br />    Laser color: Green ， Blue/Violet ， Red<br />    Cautions 1: The visible violet light has a wavelength of 405 nm which is much shorter than green which has a wavelength of about 532 nm or red 650 nm. So the violet laser is not as bright as green ones.<br />    Cautions 2: Avoid direct eye exposure to laser beam<br /><br />    INCLUDED:<br /><br />    3x Laser Pointer Pen<br />