Product Advantages With HDMI and Central control function Document camera supports audio & video Synchronized recording. System turning on/off by one butt...
Product Advantages50mm ultra-thin design,available to embed into the push&pull chalkboardHidden button design,button are hidden inside when not in useHDMI central contr...
Product AdvantagesWith thickness of 57mm slim,it can be inserted into a pull-push blackbordWith unique smart system on/off button which can turn on/off the...