USB C & USB A 2 in 1 wireless presenter presentation remote USB C & USB 2 in 1 receiver, you can use this presentation clicker on a computer with USB C and USB 2.0 interfaces, and you don't have to worry about the interface anymore. This demo clicker is easy to use, no need to download, just plug and play. 100 feet control range and red light The wireless presentation remote control can wirelessly control 100 feet or even support large rooms. Even in large classrooms/meeting rooms, it can reach a long enough control range; lighting range: 300 feet. The red light of the laser pointer is bright enough to be seen in most backgrounds. High compatibility The demo remote can support systems: Windows/XP/Vista/7/8/10, Mac OS, Linux, Android. The supported by wireless presentation clickers are: PowerPoint/Keynote/Prezi/Word/Excle/ACD See/iWork.(When using on Keynote, press the up and down keys at the same time to switch functions. The latest version of Keynote only supports page turning) Multifunctional and easy to use slides clicker supports volume control, switching windows, black screen/full screen, page forward/backward, intuitive touch keys, easy sliding control. Clicker for powerpoint presentations uses AAA ies, which can be used immediately after replacement, so there is no need to worry about charging. (Without y) Superior details of presentation clicker with laser pointer ①Concave-convex button design, you can operate the presenter without lowering your head. The laser pointer is an indispensable presentation tool for meetings and teaching activities, and can help you get a professional appearance. ②Large soft rubber buttons, long press will not hurt your hands ③Integrated magnetic absorption, not easy to lose ④ple and elegant classic design; comfortable grip; thin and space-saving.However, if you have any issues at all please do not hesitate to get in touch.