The MP-1803 Laser Pointer is your ultimate partner for State-of-the-Art presentations. Produced with advanced optoelectronics, designed fine, checked strictly, can give you years of reliable service. The MP-1900 Laser Pointer is ideal for use in presentations where various equipment is used, such as slide projectors, TV projectors, LCD panels, film projectors and so on. The MP-1803 Laser Pointer is the upgrade of MP-1800, added a function of blinking. A blinking spot can attract the attention of the listener and audience.