Features: [2.4GHz Wireless Control] Use advanced 2.4GHz wireless technology; work area ranges is up to 20 meters in open environment, so so you can freely move around the room and interact with your audience. [Plug and Play] Can use it plug and play, no driver needed. The USB receiver is located inside the USB port of the Presenter. All-in-one design, easy to carry. [Multifunctional Laser Pen] It supports page up and down, getting into super-link, shifting window, full screen, black screen, volume control, play / pause, previous / next song, and red laser. [Red Laser] Simply press the laser button and a red point that's easy to see against most backgrounds will appear to emphasize the contents you need to highlight on the screen. [Applicable Occasions] The wireless laser pointer can be widely used in school, research institute, training center, exhibition, business meeting, government agencies and many more.