For finally the problem of function respect: The first come loose namely heat and dustproof, to educational projector, medicinal powder heat and dustproof it is Chongzhongzhi is weighed, if come loose heat is bad, meeting huge affects the service life of projector, dustproof effect not the maintenance of beautiful later period gives special trouble. Additional, numerous introduction class teachs projector to be able to satisfy the need that signal inputs before interface square appearance.
Through the analysis with brief above, believe what everybody teachs projector to introductory class to buy had a simple knowledge, the author recommends a few to suit small-sized classroom relatively to everybody below, the value education in 7000 less than projector, the hope is in your choose and buy when help somewhat.