M7 is a portable business projector with a built-in battery, and due to projection brightness of 250 ANSI lumen, consumers can use it in most situations. It can not only be used for home projection and rooftop projection but is also highly portable for office or travel use. M7 has a leather-wrapped structure, which is convenient for carrying. The leather serves to decorate and protect the machine. A rotation shaft is built-in, and it has a front air outlet instead of the more common rear air outlet. This eradicates the problem of clogging lower air channels.