Kensington PresentAir Pro Bluetooth Wireless Presenter with Red Laser Pointer and Media Controls (K72448US) Bluetooth 4.0 LE technology frees up a USB port 3 modes (Presenter, Media & Custom) to optimize your button functions. The PresenterWorks App is available free of charge Ultra-slim design, includes Stylus Tip Red laser helps make a point during presentation Compatible with Android 4.4 and above, Windows 8.1 and above, and iOS 8* and above (*Presenter mode only supports PowerPoint)