Wireless handheld Power Presenter integrates both slide up/down buttons with a laser pointer. Such compact design make the Power Presenter attractive and popular. The operation distance (max. around 15 meters from the laptop/PC) definitely another advantage to make the presenter walk freely at the stadium. Power Presenter dongle is a plug and play device that not require to install any software and just a few seconds to plug into the PC. This is a great tool for PowerPoint presentations, with it, you don't need to stand beside your computer or have an additional person click the slide for you. Features: It contains two parts: transmitter and usb receiverIt combines the function of a laser pointer and keyboard hotkeys, built-in flash memory is available by customized Control distance: work in a range of 7-15 meters Easy to use. USB plug-and-play. No driver required 1. Laser Button:Laser on/off control 2. Page Up Button: Slide up control 3. Page Down Button: Slide down control 4. Lock/Unlock Switch: To change battery Color : Black Package Content : 1 X Presenter Laser Pointer 1 X Wireless USB receiver 1 X Battery 1 X Carry Case 1 X Manual (Note : Photo attached is for reference only, it may be slightly varied in items of colour, shape from the actual item delivered from time to time)