BenQ has made improvements in all - from the conclusion of their color wheel for maximum sound and vibration damping for a smooth flow of air to the hood allows operation at low speeds. The advantage of BenQ: sweet silence! MP515 features with a high contrast ratio of 2600:1. High rates to translate the contract into clarity about the details and crisp, a wider range of subtle differences in color, the text is sharp, clear and easy to read and, in turn, catch the audience's attention and interest. 2500 ANSI lumens projection lamp ensures great viewing experience is also a place with ambient light. MP515 is ideal for small conference room for 25 people.