Presentation laser pen

100mW powerful blue laser pointer pen
Usages:
Teacher: classroom teaching
Business men: meeting and presentation
Tour guide: museum and exhibition
Outdoor traveler: outdoor exploration
Astrophile: observing stars
 
Specification: 
Laser color: blue. 
Output mode: constant wave. 
Max output power: 100mW. 
Wavelength: 405nm. 
Expected lifespan: working time of over 5,000 hours. 
Range in darkness: more than 3000 meters. 
Material: aluminum
Pen color: black
 
Features:
• The light can be used to point at any desired target on projection screen, video or objects at a distance and more.
• It can also be used to create romantic atmosphere or for fun, presentation, teaching indicator, and more.
• Pen-sized and lightweight that you can put it your pocket or handbag.
• The battery space is totally sealed that can avoid water into it causing short-circuit.
• Anti-slip handle, which prevents the laser pointer pen from dropping down in your hand.
Package:
Size: 15.8 x 1.5cm
Weight: 31g
Power supply: batteries (not included). 
 
Warning: 

• Do not point laser at people. There is danger of physical harm if beam is shined into the eyes.
• Children should only handle lasers under adult supervision.