Simple and easy to use. Use your laser pointer to point at any desired targets on projection screens or videos. Across the sky, the laser will allow you to find the stars in the vast sky. This power-saving, lightweight laser is suitable for putting in your pocket or handbags. This laser pointer can be used for presentation, teaching indicator, children amusement and more. This high quality laser pointer adopts the latest technology optics and microelectronics. Press the button switch at the bottom to turn the laser on, no need to keep holding during use.