Th? gi?i Led - n?i cung c?p b? ?i?u khi?n thi?t b? phát ?i?n chính hãng, ch?t l??ng“As a issue of point, the PX747-4K need to be strongly regarded as a meeting/boardroom projector in cases where by the subject matter is mostly figures, textual content, black and white bar graphs, etc.c?ng xu?t Hello?n t? tr??ng quay mà t?c ?? ???c xác ??nh b