Recently, I find a useful and helpful equipment for presentation and teaching, that is 5 in 1 purple laser pointer light pen. This pen is delicately and exquisite designed, able to provide you excellent performance. To know what this pen is really like and what it is capable of clearly, you can read the following.
Pen color: black
Size: 15.8 x 1.3 x 1.5cm
Light color: purple
Light style: kaleidoscopic
Wave length: 405nm
Output power: 5mW
Power supply: 2 x AAA battery (not included)
Pen-sized and lightweight that you can put it your pocket or handbag
Designed with purple color light, which is easy for you to find the target and outline the key point
The battery space totally sealed to avoid water into it which may cause short-circuit
Anti-slip handle, preventing the laser pointer pen from dropping down in your hand
5 different and changeable light patterns in one converter light refraction head with an unchangeable pattern in another
Rotating the converter head to change the pattern of the light
Used to point at any desired target on projection screen, video or objects at a distance
Used to create romantic atmosphere or for fun, presentation, teaching indicator, etc.
In short, this 5 in 1 purple laser pointer light pen is a high quality durable and practical product, ideal and perfect for presentation and teaching. If you need a pen like that, this one is definitely your top choice.