https://alexnld.com/product/doosl-dsit014-2-4ghz-rechargeable-new-edition-powerpoint-presentation-remote-control-multi-functional-laser-pointer-with-electronic-mark-mark-clear-volume-adjust-function-for-powerpoint-keynote-prezi/?hilite="Doosl DSIT014 2.4GHz Rechargeable New Edition PowerPoint Presentation Remote Control Multi-functional Laser Pointer with Electronic Mark"