... ! With it, you don't need to stand before your computer or have an additional person click the slide for you ... , so you never have to stand at beside of your computer.Multifunctional presenter: It combines the functions of laser pointer, a ... : Laser pointer, Trackball mouse, Desktop/My computer, Close/E-mail, Internet/Favourite, Page up/Zoom out, Page down/Zoom in, Alt/Tab and ...