The laser's adjustable feature allows you to adjust the focus of the laser pointer to get the ideal beam for the distance you are projecting. Just turn the ring on the front of the pointer. At short distances, a few feet or less, you can project a remarkably sharp and bright beam.
This top quality red pointer makes an immediate impact. Presenters using red lasers are immediately perceived as ahead of the pack in both style and technology. Housed in a solid metal case, the Adjustable red Laser Pointer is a great choice for those who want the very best and latest in laser pointer technology.
Product name:Adjustable Focus Red Laser Pointer
Model no.JLR-005
Output wavelength:660nm
Output power:200mW,300mW.
Battery:2*CR2
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.
