Updates allow educators to fully utilize classroom technologyCalifone International, Inc., a leader in the design, development and manufacturing of audiovisual (AV) and supplemental curriculum products for use in education, announces updates to its wired PresentationPro speaker.Each upgrade enhanc …

Updates allow educators to fully utilize classroom technologyCalifone International, Inc., a leader in the design, development and manufacturing of audiovisual (AV) and supplemental curriculum products for use in education, announces updates to its wired PresentationPro speaker.Each upgrade enhances …