This high quality laser pointer adopts the latest technology optics and microelectronics.Power saving， lightweight， suitable for putting in your pocket or handbags.This laser pointer can be used for presentation， teaching indicator， children amusement and more.Use your laser pointer to point at any desired targets on projection screen， video.Press-button switch at the bottom， no need to keepholding when use it.Wavelength: 405nm.Output power:< 1mw.Size: 112*20.5*20.5 mm.Beam style: Continuous line.Spot size: 6M place <|?10mm.Power supply: 1 x 16340 Battery(Not include battery.Laser range: 2000-5000meters.Focus mode: Fixed focus.Body material: Aerometal.Working voltage:DC=3.0-3.7V.Never point it to eyes!!!Keep it away from children!!!