Doosl DSIT001 2.4GHz d Version point Presentation Remote -functional Pointer for -media, : 100m The product is shipped based on the color or size of the main image of the product page. 1. Wireless presenter, it is equipped with top-grade microchip, up to 100 meters wireless range. Operating on 2.4G RF frequency, it is an ISM free frequency and can be used world-wide. It is made of nickel plating metal dome and silicone keypad, brings you comfortable touch feeling. 2. Comes with auto standby and deep sleep functions for energy-saving and durable use, and equipped with a separate s and effectively avoids unwanted power consumption when you put it in your bag. 3. With the red pointer gets the whole room focused on your most important points. It also combines more functions of page up, page down, play slides, black screen for Point presentation. 4. The mini USB receiver supports plug and play technology. No driver is required. Operation system: 2003, XP, Vista, 7, 8, Mac OS, Linux. 5. Built-in docking bay stores USB receiver for easy pack up and portability, and one USB receiver can be controlled by 6 transmitters simultaneously. 6. It is powered by 1 x AAA (not included)