(PLUG & PLAY) The presentation clicker pointer is easy to use, just plug in the USB receiver and it's ready to use, no need to download any software. (The USB fits into the bottom of the clicker.) (BRIGHT RED POINTER & 20 METERS LONG WIRELESS RANGE) Powerpoint presentation clicker with bright red light that is easy to see against most backgrounds ((Not recommended for LCD/LED/TV screens); Wireless range for the powerpoint presenter up to 30 meters, free to move even in a large room. (PRESENTATION CLICKER FUNCTION) The presentation pointer supports various functions: Page Forward/Backward, Volume Control, Hyperlink, Switch Window, Full/Black Screen. It is an effective presentation tool for daily presentations. (Easy to use and carry) The wireless presenter remote control is a plug & play device without installing any software. The USB receiver can be magnetically stored inside the bottom of the presentation clicker. Like a pen, this presentation pointer can be attached to your pocket or book. (Slideshow clicker supports hyperlinks, volume control) The also combines more functions such as page up, page down, play slides, black screen for PowerPoint presentation; Single-click the multifunction button marked with a square to select hyperlink; Double-click the multifunction button to open hyperlink; Long-press the multifunction button to switch windows