Ultra Powerful Red Laser Pointer Keychain Silver 5mw 650nm (3 x LR44 1.5V Button Cell included)

Manufacturer  Specifications:

• Laser Wavelength: 635-670nm
• Light Power: <5mW
• Power Supply: 3 x LR44 (1.5V) button cell batteries
• Super laser pen with key chain, wonderful gift to anyone from kids to adult
• Powerful laser beam, efficient for long working distance
• High working stability and long lifespan
• This laser pointer can be used for presentation, teaching indicator and children amusement
• This is a great magic laser toy for you to own or to give as a gift to a friend

Detailed Features:

         
         
          Full metal construction

                   

Introduction and Application

A laser pointer or laser pen is a portable and visible laser. It is designed to highlight something of interest by projecting a small bright spot of colored light onto it. The small width of the beam and low power of typical laser pointers make the beam itself invisible in a reasonably clean atmosphere, showing a point of light when striking an opaque surface. Some higher-powered laser pointers project a visible beam via scattering from dust particles or water/fog droplets along the beam path. Higher power and higher frequency lasers may have a visible beam even in clean air due to Rayleigh scattering from air molecules, especially when viewed in moderately-to-dimly lit conditions. The intensity of such scattering increases when these beams are viewed from angles near the beam axis. Such pointers, particularly in the green-light output range, are used as astronomical-object pointers for teaching purposes, in the same general manner as flashlights.

• Laser pointers (especially the higher powered ones) are restricted to official government use only in some countries. You are solely responsible for finding out whether the products you order is legal to import and/or use in your country. We will send you the products you order and cannot accept any liability for customs issues or any implications of your ownership or usage of this device. In the event of resale, you also need to agree to incorporate this notation in the product description so that any potential buyer can be well informed before making purchasing decision
• When laser pointer is in use, taking off battery can cause damage
• Please don't use it continually for over 30 seconds.

Package Included:

• 1 x 5mW RED Laser Pointer Keychain
• 3 x LR44 (1.5V) Button Cell Batteries