Ergonomic hand-held design Green laser with strong wavelength Maximum output power Laser range is 10 km. Thanks to its high power, it leaves a visible mark in the air at night. Length: 16 cm. Simple and elegant design High-precision control The beam can be seen at night Universal application Ease of use Compact and convenient All-metal body does not slip coated with material. Easy to use with one button. The light is 50 times brighter than the red laser. The laser beam can be used:1) as a pointer for teaching and also in all kinds of presentations, trainings, seminars, etc., because the laser is clearly visible even on bright screens visible;2) for astrological purposes, for studying the night sky, because with the help of a laser you can easily point to the star of interest;3) as an indicator of your position on the ground during all kinds of walks and explorations, thanks to the projected beam you can easily determine where it comes from;4) research purposes;5 ) process of carrying out construction work;6) for other purposes.Content:Laser5 head apparatus2 batteriesBox.