- Multifunctional: You can also use it as a presenter, it is stronge enough to be seen clearly,even in a brightly lit room or on Plasma/LCD screens. Focus your audience’s full attention on your most important points.
- Safe and Harmless: Wavelength: green 532nm / red 650nm / purple 405nm. Safe for human and animals. But please do not illuminate the human or pets’ eyes.
- Battery Design: These each take 2 AAA batteries(Not included). The spring is always to be connected to the negative side of the battery. Special low power design can make the battery last for a longer time.