【LOW BATTERY REMINDER LIGHT】：This wireless clicker for presentations comes with a low power reminder indicator light. The red light blinks once every second to indicate that the battery is low and needs to be replaced in time. Only need to install one AAA battery (not included in the package), energy efficient. Designed with a lightweight size for easy portability, the silicone buttons are comfortable and natural to use 【USB Type C DUAL-HEAD RECEIVER DESIGN】：Plug and Play,Widely Compatibility.The UBS Type C dual-head receiver design of the wireless presenter remote can meet most of your usage needs. Don't worry even if you encounter a situation where you need to temporarily change the device, this receiver can be transferred to a device with a different interface. The tail of the presenter clicker also comes with a magnetic storage design, which can better store the receiver without worrying about losing it 【LIGHTWEIGHT AND PORTABLE DESIGN & MULTI-FUNCTION PRESENTATION POINTER】：Pointer Presenter Remote Functions: Page Up/Down, Full Screen/Black Screen, Volume +/- Control, Switch Windows, Open Hyperlinks, Red Light. The pointer for presentations is made of gentle anti-slip ABS Convex dot material and mouse touch buttons which are comfortable, non-slip, portable and lightweight for using. This PowerPoint Clicker is designed to fit nicely into your hand. The pointer clicker for presentation features intuitive touch-keys for easy slideshow control, so you can page forward/back without having to look at the presentation pointer's buttons 【WIDELY APPLICABLEI COMPATIBILITY】：Presentation Clicker with Light Pointer numerous devices and software, accommodating all your presentation needs. Wireless presentation clicker supports systems: Windows 2003/XP/Vista/7/8/10, Mac OS, Android,Linux; Presenter clicker wireless supports software: PowerPoint, iWork (Keynote & Numbers & Pages), Prezi, MS Word, Excel, ACDSee, Website, etc.(pc remote can't for Google Slides). This wireless presenter is suitable for most settings. The presentation pointer proves to be an invaluable tool for students, teachers, tutors, lecturers, speakers, and professionals 【LONG RANGE WIRELESS CONTROL & RED LIGHT】：The wireless presentation clicker uses 2.4 GHz wireless radio frequency technology. Quick response, no delay or skipping. The Wireless Range is ≤164 FT and the Red Light Pointer Range is ≤656 FT , which can fully cover the entire indoor speech. Whether the light or dark of surroundings, whether the large or small space, the receiver can completely receive the signal from the clicker