【300ft LONG CONTROL RANGE】 The Wireless Range of VicTsing Presentation Clicker（power＜1mW） is 98 feet as well as the Laser Range is up to 328 feet, so you can freely move around and present freely from as far as 100 Foot away. Perfect for large-size rooms.28 feet, so you can freely move around and present freely from as far as 100 Foot away. Perfect for large-size rooms. | 【User-friendly Design & EASY TO USE】 This PowerPoint remote supports Full Screen, Black Screen, Page up, Page down, Red Light. The presenter begins to serve when the computer installs driver automatically. Just Plug & Play, very convenient. | 【ANTI-LOST USB RECEIVER】 The Wireless Presenter comes with mini magnetic USB receiver stored in wireless transmitter tail which it stays secured into place with a magnet system. It helps you always keep easy and calm before or during the speeches. | 【BRIGHT LIGHT & POWERED by 1* AAA battery】 Presentation remote control with a brilliant red light that’s easy to see against most backgrounds, highlight key points of your slides, so you can interact with your audience and keep their mind on your PPT. The AAA battery is not included. | 【WIDE COMPATIBILITY】Presentation Pointer is optimized to work with windows XP/7/8/, Mac OS, Linux, Android. The laser pointer Compatibles with Microsoft, PowerPoint, keynote, Prezi and so on. Especially for teachers, tutors, lecturers and speakers.