Product name:Red Laser pointer

Dimentsion:φ14×160mm

Output wavelength:650nm

Output power:200MW

Battery:2*AAA

Laser Type:Visible Laser Diode.

Can be seen not only the dot in the mid-air it is also very good astronomy tool.With its sharp laser beam you can point the exact star you want.

It don't need warm-up even if in winter.