The presentation presenter combines physical and digital laser pointer in one clicker,it can clearly present on a traditional projection screen or LCD/TV screen,The wireless remote slide advancer supports systems: Windows 8/10 or later version，Mac OS 10.10 0r later version.Lightweight and compact design is easy to fit into the pocket.USB A & Type C receiver combine in a presenter remote, you can freely switch between different port devices such as Mac, laoptop and pc, one for multiple computers.The receiver placed inside the back of the clicker, conveniently to store when not in use. (Powered by 2pcs AAA Battery are not included).