The World's First Ring Style Thumb Controller is the cutting-edge ring style touch presenter. It is a lightweight design and human oriented ring style air-presenter with mouse functions, you receive full access to control power point-slides and manipulate the laser pointer anywhere in the room when doing a presentation. Ring Presenter also comes with the in-air mouse function so you can use actual mouse functions like cursor movement, left/middle/right buttons, dragging and 4-way scrolling. Ring Presenter is a great tool for browsing Internet pages and documents in locations such as a bus, plane, trainer school lectures. It is powered by the slimmest Li-ion rechargeable battery design to protect the environment, the smart battery-low detector flashes in blue when it is time to recharge. The Ring Presenter worry-free 2.4GHz technology provides a reliable working performance and the laser pointer can work at a distance up to 10 meters.