Features: brand new and high quality Powered by AAA Battery (Not included); Red light clicker support hyperlinks, Volume Control; It also combines more functions of page up, page down, for play slides, black screen for PowerPoint presentation; Single click the multipurpose button which is label with a square to select hyperlinks; Double-click the multipurpose button to enter hyperlinks; Long press multipurpose button to switch window. A bright red light that’s easy to see against most backgrounds (not recommended for LED, LCD screens);Wireless range of powerpoint presenter up to 98 foot, free to movearound room; It comes with a clip that allows you to slide it in your pocket securely. Wireless presentation clicker supports MS Words, PowerPoint, Work (Keynote & Numbers & Pages) . Presenter support options:Windows plug the usb receiver into laptop, will come out a box, and then you can select 101or104 option), Linux, Android. Slide advancer has low power indicate; One-piece design, built-in docking bay in wireless transmitters tail to store USB receiver for easy pack up and portabily, USB stays secure into place with a magnet systems. Specifications: Wireless frequency: 2.4G Color: Black, White(optional) Size: approx.139.2x18.2x19.7mm/5.48x0.72x0.78in Package Includes: 1 x Wireless Presenter remote control 1 x Ultra-Slim Wireless Receiver note: LED light flashing in blue, indicates the battery is in low conditions. Change the battery in for time, so that you don'for t miss important presentations