Wireless Presenter Presentation Remote Presentation Laser Clicker with Retractable Pointer 2.4GHz USB Powerpoint PPT Clicker Flip Pen for Office Teacher

180mAh. Specifications. Remote control distance: 50M-200M. Ray control distance: 200m. Ray: red line. Compatible system: Windows XP/7/8/10, Mac OS, Linux Android. Key function. Laser light long press to turn on the laser, release to turn off). Page up key: click to turn up page, long press full screen/exit. Page down key: click to turn down page, long press black screen/exit. Annotation key: Long press PPT annotation/exit annotation 2. Double click to clear annotation. Volume up/down key: Click Volume up, long press to switch to hyperlink connection function, double click to open hyperlink. Volume decrease key: Click on volume decrease, long press to bring up eraser/exit eraser